1979

August A oût

Number Numero

Office:- Rcom No. 1265 Editor:- Michael W. Ovenden Téléphone 3 43-5889

La Place desLA Arts fait de nombreux PLACE âtres offrait un double défi aux archi- DES ARTS efforts pour rendre plus accessible sa tectes à savoir contenir deux théâtres programmation à un plus large public. dans un seul immeuble et en assurer la Elle a adopté une politique culturelle complete autonomie, le tout à ériger en en fonction de deux objectifs qui sont: ll mois! -offrir par diverses activites d'ani- Le Théâtre Maisonneuve est une ver- mation des spectacles à prix populaires sion moderne du théâtre à l'italienne. tant pour adultes que pour enfants. La decoration tout en étant d'une grande (Ces activites d'animation se presen- sobriété dispose tout de même de plu- tent sous forme de conferences sur l'art sieurs oeuvres d'art. Quant au Port- avec des expositions, des concerts-midi, Royal, il est muni d'une scène d'une sons et brioches, le dimanche matin ... ) largeur exceptionnelle. En effet, cellede -faire en sorte que ces spectacles la Salle Wilfrid-Pelletier est de 21m tan- soient pour lepublicuneinitiational'art. dis que celle du Port-Royal peut aller Caractéristique originate, la Place jusqu'a 29,2 m. La salle du Port-Royal des Arts ouvre ses portes non seulement servant surtout pour la presentation de le soir mais aussi le jour contrairement pieces de théâtres permet aussi, grâce à la plupart des autres salles qui de- à son equipement et ses dimensions mo- meurent fermees durant le jour. dernes, la r ealisation audacieuse de Un sondage effectue à l'automne 1977 spectacles varies. aupres de la clientele de la Place des La a mis à la dis- Arts, révèle des chases interessantes position des amateurs de théâtre le petit com me: "Café de la Place" qui est à la fois -97% des spectateurs de la Place des un théâtre, le soir, et un restaurant le Arts sont satisfaits de la programmation! midi. (Nos gouvernements ne peuvent pas se Quant à sa programmation, elle est vanter de pareilles statistiques ... " équilibrée et prestigieuse. Elle a ac- -sa clientele se situe au niveau socio- cueilli la plupart des grands artistes du econom ique moyen . On con state done une monde com me par exemple les pianistes evolution dans ce domaine, car il n'y a Artur Rubinstein , Vladimir Horowitz, le Cartier" (ulterieurement renomme Pla- Pour administrer efficacement ce cen- pas si longtemps, il en était autre- chanteur Dietrich- Dieskau, le ce des Arts) et le 21 septembre 1963 tre d'art, on a crée, en 1964, la Régie ment, le niveau socio-economique était flûtiste Jean-Pierre Ram pal, leviolonis- date de !'inauguration de la Grande Sal- de la Place des Art s. Cette Régie em- nettement superieur. te Yehudi Menuhin, le cithariste Ravi le Wilfrid-Pelletier. Wilfrid Pelletier ploie environ 112 personnes permanen- -le nombre des nouveaux adherants Shankar, Ray Charles, etc ... a été un des membres fondateurs et tes et 471 temporaires et dispose d'un se developpe done sans cesse (17. 5% Enfin la Place des Arts a reçu aussi directeur de 1'Orchestre Symphonique budget annuel de près de 3 millions. en 1977-78). comme mandat d'exercer une activite de ; il en est maintenant pré- Depuis 1963, les activites de la Place communautaire en accueillant des grou- sident-honoraire. (Suite à lla page 2) des Arts ont évolué dans le sens sui- pes, des organismes pour fin de réu- vant: nion, congrs, concours international de (1 salle) 250 representations musique etc. Ce rôle de la Place des Arts permet ainsi d'etendre le rayonne- MUSIQUE A L'ASSEMBLEE GENERALE 1968-1969 ment de la metropole au monde entier. (3 salles) 650 representations 1963 1968-1969 1977 1977 1,000 representations L'Ensemble (avec les activites Musique 38% 30% 20% d'animation.) Variétés 35% 21% 45% Claude GervaiseMersenn, Praetorius, Ar 600,000 spectateurs Comment sonnait la musi- spécialisé dans l'étude et 636,000 spectateurs Danse 21% 9% 12% que au temps de Leonard da !'interpretation de la musi- beau , Gafurius, Morley ... 1,300,000 spectateurs Vinci et de Galilee? A quoi que ancienne, surtout celle afin de connaitretous les se Théâtre 6% 40% 23% ressemblaient les instru-- de la Renaissance. Partiis de crets de !'interpretation e Lorsqu'on pénètre à l'interieur de la ments pour Ia jouer? On con- l'idée de rendre pleinement de !'instrumentation de cett Place des Arts, on est agreablement nait bien aujourd'hui la pei- justice à cette musique et de musique. charmé par la decoration. En effet, la Orgueil de Montreal, laPlace des Arts ture , la sculpture, la lit- !'interpreter avec le plus lis sont même allés jus decoration du foyer central (7,9 m de célébrait en 1978-1979 son 15e anniver- terature, l'état des sciences d'authenticite possible, ils qu'à reapprendre à jouer d hauteur) et des quatre foyers lateraux saire. A cette occasion, le Président de de cette grande époque que ont d'abord réuni une col- leurs instruments en se ser a permis de presenter des oeuvres d'ar- la Régie de la Place des Arts faisait é- fut la Renaissance. Mais la lection de plus de trois cents vant des methodesd'appren tistes canadiens renommes. On y trouve tat des nouvelles installations construi- musique ... on 1'a quelque peu instruments anciens ou re- tissage publiees au XVIe si- des tapisseries dessinees et ou tes dans le corridor menant de la Place négligée. constitues dont ils se servent ècle, étant de plus en plus exécutées par Robert LaPalme, Mi- des Arts au Complexe Desjardins. Mais Or !'Ensemble Claude dans leurs concerts; flûtes convaincus que plus on se cheline Beauchemin, des sculptures pour bien comprendre l'évolution de ce Gervaise ( nom du premier à bee, cromornes, chalé- conforme aux goûts et rè- d'Anne Kahane, de Louis Archambault, grand centre culture!, il serait utile de musicien de l'histoire du mies, luth, viele, rebec, vio- gles de l'epoque, pluslamu du sculpteur esquimau Innukpuk; une sé- decrire quelques-unes des étapes de sa Quebec) qui a vu le jour, il le de gam be, saqueboute, tels sique en ressort vivante et rie de vitraux du peintre Alfred Pel- construction. La gestation de ce comple- y a plus de 10 ans sur le sont les instruments qu'ils interessante, toute tentati - Ian. Enfin, en mai 1976, la Place des xe architectural s'est échelonnée sur sol québécois, s 'est donné utili sent maintenant réguliè- ve de modernisation n'ap Arts ajoutait à son patrimoine deux huit années entre 1955 ' année durant pour but de reparer cette né- rement. En second lieu, ils portant que fadeur et incom- dons importants des réputés peintres laquelle le Maire de Montreal, Me Jean gligence dans la mesure de ont étudié les textes des prehension. Jean-Paul Riopelle "La Bolduc" et Fer- Drapeau et 23 autres personnes se réu- ses moyens. Ce groupe de principaux theoriciens et (Suite à la page 2 nand Toupin "Hochelaga". nirent pour jeter les bases du futur orga- huit musiciens s'est done praticiens de 1' époque (v .g .: La construction de l'édifice des the- nisme "Centre Sir Georges-Etienne EDITORIAL

The world-lines of fundamental particles may intersect. "The words necessary and useful have been chosen with pressure grew to use General Assemblies for the dis- The world-lines of astronomers may not! Instead, they care. The article does not say international co-operation semination of information through the reading of papers, form helices - a helix for the rotation of the Earth upon whenever possible, nor does it encourage a search for and not simply to concentrate on those areas of research its axis, another for the revolution of the Earth about problems to the solution of which international co-- which demanded international cooperation. The pressure was the Sun, yet another for the revolution of the Sun in its tion could be applied.. . experienced astronomers recal- increased by the habit of granting agencies to tie the paying galactocentric orbit - and perhaps, who knows, on for led the fact that the great advances in the several sciences of expenses to the reading of papers - a strange habit, the revolution of the about the Virgo cluster. have been the results of developments and discoveries for a grantee hopefully gets more stimulation out of hearing From time to time, seen from the perspective of an om- made by individuals, and that this principle will always other people than out of hearing himself. niscient observer in 5-space, the spiral world-lines come hold true; and, further, that the Union then in process And so the pressure is on, as the extension of the sche- together, helix entwined with helix, to form, as if were, of organization should never be in a position to inerfere dule of commission meetiags into this afternoon shows. a world-rope. If the world-rope of the nuclear family with individual initiative...... The purposes of the Union is as a hawser which could hold the Queen Elizabeth in refer to future developpments, rathar than to a recital of Most of us have grown up with easy and rapid air trans- dock. portation. We have taken it for granted. Perhaps at this the accomplishments of the past." Professor assembly, for the first time, the crisis in tbe distribution If our omniscient observer in 5-space were also a phi- noted the success of national societies whose principal of the world's dwindling oil resources reminds us that losopher, he might postulate patterns of forces that cause function was the reading and discussing of papers, but we cannot always take tbis ease of transportation for the world-threads to come together and then separate. felt that international societies "to command attendance granted. This is a situation to which tbe IAU may have Save for its intermittent nature, be might see no distinc- and success, must have other and broader aims, more to respond in the future, just as it has to respond to may tion between the force of gravity that forms the lower- general and more impelling purposes.'' other changes during its sixty of existence. From time to time, our Presidents have returned to the order spirals, and the "force of attraction of an IAU But th~ planes are still flying, and we have come, on General Assembly". What is this force? What is this pur- consideration of these "more general and more impelling the Four Winds, from te Four Corners of the Earth, to pose? purposes". At the IXGeneral Assembly, Prof. 0 . Struve garther here in Montreal. What we make of our General (or O'struve as he preferred to be called in Dublin) took Assembly, and what ve get out of it, is up to us. We on the The Union was founded in Brussels in 1919, in the after- stock of the changes that had taken place in the thirty- math of the First World War, when the re-establishment staff os this newspaper hope that our efforts will be a six years since the foundation of the Union. In the first contribution towards making the XVII General Assembly of international co-operation was vital to the world, and place, with the development of large telescopes, both not only in astronomy. The purposeofthe Union was starkly of it, is up to us. We on the staff os this newpaper hape radio and optical, the actual conduct of research had become hat our efforts will be a contribution towards making the XVII stated by President Baillaud at the first General As- more of a team effort in many places. The ever-present sembly in Rome in 1922 : - "La recherche astronomique General Assembly, of the IAU both fruitful and enjoya- need for funding of large projects meant that we could ble. est !'objet essentiel de notre Union" . Article 1 of the not simply adopt a laissez-faire approach to the organiza- statutes puts it a little more precisely, as follows: tion of our science. The rapid dissemination of informa- Welcome to Montreal. What we make of our general (i) to facilitate the relations between astronomers of tion, especially observational data, was already showing Assembly, and what we get out of it, is up to us . We on the different countries where international co-operation is ne- signs of straining the traditional publishing facilities availa- staff of this newspaper hope that our re efforts will be a cessary or useful; ble; here was clearly a zone where international coopera- contribution towards making the XVII General Assembly (ii)to promote the study of astronomy in all its depart- tion was both necessary and useful. But above all, the of the IAU both fruitful and enjoyable . Welcome to Mon- ments. growth of the air transportation industry had made atten- treal! "Where necessary or useful"! As W. W. Campbell said dance at international conferences easier, quicker and (The Four Winds are from the 1282 ui edition of Pto- at the second Assembly in Cambridge, England in 1925, (in real terms ) cheaper than it had ever been before. The lemy). L'ENSEMBLE CLAUDE GERVAISE (Suite de Ia page I) groupe ont déjà enregistre Gilles Vigneault, composi- Avec lesannees,l'Ensem- deux disques et en preparent teur québécois contemporain ble Claude Gervaise a su di- un troisieme. Ils ont publie a près a voir arrange ces oeu- versifier son repertoire et une revue de vulgarisation: vres dans le style du XVI e a porté son attention à d'au- " Carnet musical", et se siècle - Pour queUe raison? tres periodes que la Renais produisent souvent en con- - "Tous ceux qui ont aimé sance: Musique du Moye Age cert au Quebec, aux Etats- notre interpretation de la Musique folklorique québé- Unis. en Belgique ... toujours musique de Vigneault sont des amateurs de musique coise, musique française in- dans le but de bien faire terprétée au Quebec au dé- connaitre la musique ancien- ancienne qui s'ignorent. but de la colonie. ne. Leur premier di squ e J espere qu 'ils vont saisir le En outre, les musiciens du contenait des chansons de message ... " ASTRONOMER OF THE DAY THE Fl ST TO REGISTER

LA PLACE DES ARTS même enceinte a constitue un tour de (Suite de Ia page 1) force pour les architectes qui voulaient Sur le plan strictement construction, lui conferer quand même un caractere on a procédé en trois phases. En pre- intime. L'acoustique de la Salle ne cesse mier lieu, on a construit la Grande Sal- de susciter des commentaires elogieux le Wilfrid-Pelletier, avec garages et de Ia part des plus grands artistes. services souterrains; on peut apprecier Evidemment, Ia Salle Wilfrid Pelletier le fait que la Place des Arts so it directe- est dotée d'equipements techniques des ment reliee a vee le métro, principal mo- plus modernes (pour l'eclairage, le son, yen de transport en commun à Montreal. la projection notamment de films de En second lieu et à 1' occasion de !'Ex- 16mm et 35mrn). C'est une salle poly- position Internationale et Universelle de valente puisqu'elle peut servir à la fois Montreal, en 1967, on a entrepris la cons- comme salle d'opéra, de concerts et de truction de !'edifice des théâtres com- spectacles. L 'Orchestre Symphonique de prenant deux salles: le Théâtre Maison- Montreal s'est rapidement adapte à cette neuve et le Théâtre Port--Royal. Ender- nouvelle salle qui crée une atmosphere nier lieu, on y ajouta les locaux dans propice aux epanchements createurs des ce corridor qui relie Ia Place des Arts artistes ... au Complexe Desjardins. Ces derniers Plusieurs grands orchestres comme disposent entre autre de salles de répé- le Boston Symphony, Ia Royal Philarmo- tition, de loges d'artistes, d'un atelier nique, le Concertgebow, 1'orchestre Phi- de décors reparti sur deux planchers, larmonique de Vienne, le Cleveland Or- Dr. Eleanore Trefftz (right) being greated at the Registration Desk by Mlle Madeleine d'un atelier de couture, d'espaces de chestra etc. s'v sont faits entendre. Le Bergevin, Secretary of the National Organizing Committee. bureaux, etc. Festival mondial d'Expo 67 nous presenta La Place des Arts est une entreprise plusieurs troupes d'opera comme celles The first participant to She is an atomic physicist cern to Dr. Trefftz. She is à but non lucratif. Son deficit annuel est de Vienne. de Hambourg, La Scala, le check in yesterday at the with an interest in ultravio- anxious for a closer connec- done comble par le gouvernement pro.- Bolshoi... Le ballet a aussi sa part Registration Desk at the let observations of the solar tion with the USSR and Eas- vincial et la Ville de Montreal. L'ensem- dans la programmation de la Place des Queen Elizabeth Hotel was corona. As President of tern countries and sees the ble architectural a coûté 38 millions de Arts . Dr. Eleanore Trefftz, of the Commission 14, Fundamen- IAU as important in encou- dollars et constitue le pivot même d'un Pour se une idée du genre de Max Planck Institute fur tal Spectroscopic Data, the raging such cooperation and plan de reamenagement de ce secteur de spectacles et de Ia proportion dans la- Physik und Astrophysik. She collection and dissemination collaboration. la ville. qnelle ils sont présentés, Ia Place des arrived in Montreal on Au- of fundamental physical data, This is the ninth General La disposition des 2, 983 fauteuils de la Arts a compile certaines statistiques gust 12 via Lufthansa from and their importance to as- Assembly which she has at- Salle Wilfrid-Pelletier dans une seule et dont en voici quelques resultats Munich. trophysics, is of special con- tended. A. Queen Elisabeth a . Atwater h. Place d'Armes B. Mount Royal b. Guy i. Victoria C. Ramada Inn c. Peel j. Bonaventure D. Maritime (Seaway) d. McGill k. Berri-de-Montigny E. Windsor e. Place des Arts 1. Beaudry F. Berkeley f. st-Laurent m. Ile ste Hélène G. Holiday Inn Downtown g. Champs de Mars

BEM VI RDO BI ENVEN I DO WI LLKOMMEN SVERETETTEL ÜDVÖZÖLJÜK lJ

BI NE-ATI VEN IT - BENVENUTO WITAJCIE

Forum (Canadiens de Montréal) 1 Forum (Hockey) BIENVENUE Musée des Beaux-Arts 2 Museum of Fine Arts Université Concordia 3 Concordia University Gare Windsor 4 Windsor station Planétarium Dow 5 Dow Planetarium p VELKOMMEN WELC0ME Gare Centrale 6 Central station Cathédrale Marie Reine du Monde 7 Mary Queen-of-the-World Cathedral Université McGill 8 McGill University Musée McCord 9 McCord Museum Cathédrale de l'Eglise du Christ 10 Christ Church Cathedral Université du Québec 11 Quebec University WELCOME FORM THE GUESTS' COMMITTEE Eglise de st Patrice 12 st. Patrick's Church It is with great joy and friendliness Thanks to the work undertaken by the Eglise Notre-Dame-de-Bon-Secours 13 Our-Lady-of-Succour Church that I give a warm welcome to all the Local Committee, all was planned, coor- Place Ville-Marie! 14 Place Ville Marie guest in the name of the members of the dinated and organized in order that your Terminus d' Autobus "Le Voyageur" 15 "Le Voyageur" bus Terminal Committee. I am very happy that this stay in Montreal is most enjoyable. Ann, Place des Arts 16 Place des Arts congress is bringing us together in Mont- Claudine and myself hope tbat you will Maison Radio- 17 Radio Canada House real. Three years have already passed have wonderful memories of our city and Aquarium de Montreal 18 Montreal Aquarium since Grenoble and we are very glad to of our province. Musée Casernes 19 Casernes Museum see old friends and to make new ones. Best wishes for a happy visit! Le Vieux Montreal 20 Old Montreal It is an enriching experience to have Parc Lafontaine 21 Lafontaine Park friends from all over the world. Margo V. Beaudet Gallerie - Antiquites 22 Gallery-Antique Area Marché Atwater 23 Atwater Market MOT DE BIENVENUE DU COMITE DES ACCOMPAGNANTS Carré dominion - Information touristique 24 Dominion Square- Touriste Information C'est dans la joie et l'amitie que je à travers le moode! Place Bonaventure 25 Place Bonaventure désire souhaiter la plus chaleureuse bien- Grâce au travail soutenu de tout le Quartier Chinois 26 Chinatown venu à tous les accompagnants au nom personnel du Comité local, tout a été Cité du Havre 27 Museum of Contemporary Art and Habitat des membres du Comite. Je suis très planifie, coordonne, organise pour que vo- Housing complex heureuse que ce congrès nous reunisse à tre séjour à Montreal soit des plus agréa- L'Exposition 'Terre des Hommes' 28 'Man and His World' Exhibition Montreal. Déjà trois années se soot bles. Ann , Claudine et moi-meme espé- Bureau de postes 29 General Post Office écoulées depuis Grenoble et nous nous roos que vous garderez de notre ville Bibliothèque Nationale 30 National Library rejouissoos de renouer des amitiés, de et de notre belle province un merveil- Hotel de Ville de Montreal 31 Montreal City Hall revoir des connaissaoces, de faire de leux souvenir! Palais de Justice 32 Court House nouvelles rencootres. C'est une riches- Bon Coogres! Le Parc Olympique 33 Olympic stadium and Village se veritable que de posséder des amis Margo V. Beaudet Maison Mère de Soeurs Grises 34 Mother Huse of the Order of Grey Sisters MEET STAFF There are problems still thereOUR, lecturing on tine Normandin was NOTRE PERSONNEL in the governance of a celestial mechanics and in Quebec City, and large country, 10 mil- stellar dynamics, and tooke her first degree L'administration d'un lion square kilometres also introducing science in Physics at the Uni- pays d 'une superficie de in area, 7500 kilometres to non-science studies, versite de Montreal. She 10 million de kilom è- from east to west, and where he tries (not al- moved to the University tres carrés, de 7500 in which the population ways successfully) to of Toronto to do he Ph. kilometres d'est en ou- Ann Gower Michael Ovenden Martine Normandin is far from uniformly withstand the criticisms D. with Philip Kronberg, est, et dans lequella ré- Ovenden né en Grande gner deux autres per- dans les spectres d'ob- distributed. In theirown of science by the aesthe- on rotation in partition demographi- Bretagne, venait au Ca- sonnes pour !'aider dans jets astronomiques. small way , your Natio- tes. He has been, from astromical objects. She que est loin d'etre uni - nada comme professeur sa tâche - nos journa Elle a travaille acti- nal Organizing Commit- time to time, the editor was active for many forme, pose de serieux d'astononomie à l'Uni- listes-pigistes Ann Go- vement pendant plu- tee shared this problem of several scientific years in 'La société problemes. Sur une é- versite de la Colombie wer et Martine Nor- sieurs annees au sein de with the Government of journals, which expe- d'astronomie de Mont- chelle plus petite, votre Britanique àVancouver . mandin. Ann Gower (nee " La société d'astrono- Canada. It arose most rience has proved of ab - real'. and has been in - comité national d'orga- 11 y est toujours: il don- Neville) est aussi origi- mie de Montréal", et a forcibly as the question solutely no value what- volved in the prepara- nisation partage ce pro- ne des conferences sur naire de Grande Breta- été impliquee dans la "what shall we do with soever as a preparation tion of a monthly astro- blème avec le gouverne- Ia mecanique celeste et gne, a travaille avec Sir preparation d'une emis- the representatives for the role of nespa- nomical programme on ment du Canada. Cela la dynamique stellaire. Martin Ryle sur !'aper- sian mensuelle sur l'as- i from the West?", for per editor. the CBS French Servi- s 'est encore fait sentir Il presente aussi une ture synthesis. Elle a tronomie sur le réseau it is obvious that most Conscious of his own ces network. d'une maniere plus ai- vulgarisation de la donné des conferences français de Radio-Ca- of the day-to-day deci- limitations, your Editor You will see our Ro- gue, lorsque s 'est po- science à des etudiants à l'Université de la Co- nada. sions have to be made persuaded the National ving Reporters, came- sée Ia question " Que non-scientifiques et du- lombie Britanique et à Vous allez voir nos by people on the spot. Organizing Commiteeto ras andtape-recorders faisons-nous avec les rant ces cours il essaie l'Université de Vic- journalistes à la pige One of the western re- appoint two people to as- at the ready, on campus, representants de 1' Ou- (pas toujours avec suc- toria. avec leurs cameras, presentatives, our sist him - our Roving at Joint Discussions, est?" II est clair que cès) de defendre la Elle reside mainte- leurs enregistreuses, à Chairman Alan Batten, reporters, Ann Gower and commission mee- les decisions de chaque science contre les cri- nant à Victoria avec sa l'affut , sur le campus solved the problem by and Martine Normandin. tings. Please let them jour doivent être pr ises tiques des esthetes. 11 fa mille, partageant son assistant aux discus- becoming a temporar y Ann Gower (née Nevelle) know of anything that par les gens qui sont sur a été sporadiquement temps entre ses intérêts sions conjointes et aux res ident of Montreal. also came from Britain, has interested you in place. L 'un des repré- r edacteur de plusieurs academiques et son goût reunions des commis- The only task that could where she worked with particular, and which s entants de !'ouest, no - journaux scientifiques pour la vie champetre sions. Nous aimerions be given to the other Sir Martin Ryle on aper- vou think others would tre president Al an Bat- mais cette experience qui se prête bien à !'at- que vous leur fassiez western representative tur e synthesis . She has be interested to read a - ten, a résolu le problè- ne semble pas lui a- mosphere regnant dans part de tout ce qui vous was the preparation and lectur ed at the Uni- bout ; and if one of our me en deven ant un ré- voir été d'une grande l'ile de Vancouver. Ma r a particulierement inté- editing of the newspaper versity of Victoira. She Roving Reporters sid ent temporaire de utilite quant à la prépa- tine Normandin est née ressé, et qu i pourrait, Michael Ovenden now lives in Victoria should ask to interview Montreal. La seule tâ- ration de son rôle de ré- dans Ia Ville de Québec selon vous . interesser came to Canada from with her family, dividing you, pl ease cooperate. che que l'on a pu con- dacteur de journal. et a obtenu son bacca- vos confreres: si l'un Britain thirteen s her time between acad e- MET EORE (E) is your fier aux autr es repré- Con scient de ses pro- laureat en physiques à de nos journalistes vous ago, as professor of as - mic pursuits and the newspaper sentants de l'Ouest a été pres limites, votre Ré- 1' universite de Mont- demand e une interview, tronomy at the Univer- more pastoral way of la preparation et la ré- dacteur a persuadé le réal. Elle fit sa maitr i- s'il vous plait, acceptez' s ity of British Colum- life for which Vancouver daction du journal. Comité National d'Or - se avec Philip Kroberg Le METEORE est votre bia in Vancouver . He is Island is famous. Ma- Il y a 13 ans, Michael ganisation de lui dési- sur la rotation Far aday journal. n Scho I he WI The by D.L. DuPuy Mee sun , etc. ), but there are the English session. A short gust 13th. The broad pur- by Dr . Kononovich, presi- the Canadian high• school Next on the program is also many other types of ob- paper in the French session po se of the meeting is to dent of Commission 46. Next education. By means of com- a paper by Dr. R.L. Bishop servations that can be will discuss astronomy in provide a mechanism for a broad su rvey of teaching parison, Miss L. Gouguen- (Acadia University, Canada) accomplished by high school the 'Quebe c curriculum. Two discussion between school astronomy in Canadian heim (Observatoire de Pa- on the role of the Ro yal As- students with simple, inex- longer discussions and teachers and professional schools will be presented by r is, Franc e) will then pre- trono mical Society of Canada pensive equipment. Time workshops will the take pla- astrono mers, in an effort Dr. J. R. Percy (University ris, ) will then pre- in teaching astronomy. will al so be provided fo r ce, based on the Piaget to facilitate teaching some of To ron to, Canada). Dr. sent a paper on the tea- There are somewhat similar short com muni cations by Workshop, with applications astrono my in the schools. Percy has probably been the ching of astronomy in French societies in other count ries teachers on observational in teachmg astronomy, as Members of the I.A.U. are astronomer in Canada wh o schools . It is desirable that (e.g. the BritishAst. Assoc .) activities they have em - organized by Dennis Shatz most welcome to attend and has been most active in com- other I. A. U. astronomers and we expect short di scus- ployed. Following this pa- (Pacific Science Center, to cont r ibute to the discus- munication with schools and from other countries will sions on the role these so- per will be a paper presen- U.S.A.) and his colleagues. sion. teachers whit respect to tea- also be able to add to a cieties play in teaching as- ted by Dr. J. Holzinger The workshop will discuss The program planned for ching astronomy. Dr. Per- short discussion on teaching tronomy in those countries. ( and Marshall Col- student reasoning power and the Ausust 13th meeting will cy's paper will discuss the astronomy in other coun- The R.A.S.C. offers an al- lege, U.S.A.) on laboratory related problems of tea- begin with opening remarks place of astronomy in tries. most unique opportunity to experiments in astronomy. ching. nadian shcool teachers to Dr. Holzinger is a co-author Scheduled for August 22, participate in amateur as- of a well-known laboratory as part of Commission 46 tronomy and we hope to in- manual of experiments for sessions, is an ali-day mee- form teachers of these op- teaching astronomy and his ting discussing the teaching CONCEPT NEUF portunities. The morning comments will likely be of of astronomy at the univer- session will close with a pa- special interest to teachers sity level; several in vi- L'Ensemble de Percussion "Concept Neuf" per by Dr. R. Robbins (Uni- who are looking for appro- ted speakers will present La tradition musicale a longtemps ré- pour jouer tous les genres musicaux, du versity of Texas, U.S.A .) priate experiments to con- papers on this subject, in- servé aux instruments de percussion un classique au jazz, en passant par la musi- on audio-visual material in duct in the classroom. cluding Dr. G. Abell , Dr. rôle de second plan. N'etait-ce que de que populaire et par celle dite "contem- astronomy for school tea- Following an afternnon H. Eichhorn, and Dr. D. servir de support aux autres instruments poraine". chers. break, the meeting will divi- Clarke. de l'orchestre, les cordes et les vents, L'Ensemble de Percussion Concept Neuf The afternoon session will de into an English langua- During the past several par exemple. Aujourd'hui les instruments se veut une experience musicale unique en begin with a paper by Dr. ge session and a French meetings of the I.A.U., Com- de percussion sont appeles à jouer un son genre. Elle est le fruit de neuf musi- W. Osborn (Central Michi- language session. On short mission 46 (Teaching of As- rôle nouveau dans le domaine de Ia musi- ciens qui tentent de nous faire redecouvrir gan University, U.S.A.), con- paper will be presented in tronomy) has sponsored a que. une sonorite qui remonte aux origines de cerned with observational each session. Telescopes meeting between school tea- C'est ce qu'ont compris les musiciens Ia race humaine. Pour qui sait y tendre activities for school tea- For Teaching (Dr. D. Hube, chers of the host country de !'ensemble de Percussion Concept Neuf. une oreille neuve, l'aventure s'annonce des chers. There are some Canada), with comments on and interested astronomers L'Ensemble a été fondé à Montreal en plus prometteuse. fairly obvious types of appropriate types of teles- attending the I.A.U. That 1969 par Pierre Beluse. II a donné depuis L'Ensemble est formé des musiciens observations that teachers copes for teaching astro- tradition is being continued lors de nombreux concerts au Quebec. II suivants: can instruct students with nomy in the schools, and at the XVII General Assem- a créé plusieurs oeuvres de compositeurs (e.g. observations of suns- specific examples of teles- bly, whith an aU-day mee- québécois et réalisé jusqu'a maintenant Pierre Beluse, Directeur pots, seasonal path of the copes, will be presented in ting scheduled for Au- !'enregistrement de deux microsillons. Luc Boivin Ce groupe, formé de neuf percussionnis- françois Clement tes venus d'horizons musicaux différents, Raymond Desrosiers entend en quelque sorte rehabiliter les Robert Lépine sonorites particulieres propres aux instru- Robert Leroux At the special request of the General En raison du très grand nombre de réu- ments de percussion. Leur musique est la Frederick Liessens Secretary, the National Organizing Com- nions de commissions prévu, le Secré- preuve que ceux-ci peuvent être melodieux, Aldo Mazza mittee has arranged for the afternoon taire général et le Comité national d'or- harmonieux, qu'ils peuvent être utilises Jean-Guy Plante of Tuesdav, August 14 to be available ganisation du congres unt dû fixer certai- for Commission meetings. As this re- nes de ces reunions le mardi 14 , dans quest came after many of the arrange- l'apres-midi, le jour même de la céré- ments for the Inaugural Ceremony and monie inaugural e. Le Co mité organisateur Opening General Assembly had been made, informé de façon assez tardive de cette we could only meet it by postponing the situation, aété dans l'impossibilité de mo - start of Commission meetings until 15.00 difier certaines dispositions déjà arrê- The General Assembly is scheduled to tées: l'unicue solution a done été de re- finish at 14. 30. Buses will be available tarder l'heure du début des réunions à to take (without charge) those partici- 15.00. pants who must go to the Comm ission meetings at the University, and those who A la fin de I 'assemblee générale, qui se wish to return to the Residence. The bus term inera à 14 .30 des autobus, seront dis- raide takes about 15 minutes. We request ponibles à !a Place des Arts , en nom- that all participants who are not going bre suffisant , pour le transport des parti- to Commission meetings that begin at cipants vers l'universite de Montreal. Ces 15 .00 keep their seats in the Place des mêmes autobus pourront egalement rame- Arts until those who must be at the Uni- ner d'autres congressistes aux Residen- versity by 15.00 have hat time ces universitaires. Tous ceux qui n'assis- versity by 15.00 have tad time to leave. tent pas aux reunions des commissions The meetings that begin at 15.00 are: sont toutefois pries, afin de respceter l 'ho- the joint meeting on Nomenclature or- raire prévu pour celles-ci, de laisser 1a ganized by Commission 5, and meetings of priorite d'acces aux autobus aux per- Commission 4, 10 , 14, 16 and 17, 19, 20, sonnes qui doivent y être presentes. 36, 44, and 46 . Commissions 12 and 49 do not begin their meetings until 17 .00. La réunion conjointe sur.la nomencla- In addition, the Nominating Committee will ture, organisee par la Commission 5, meet at 15.30 and the Finance Committee ainsi que les reunions des commissions at 15.45 both at the University. Twelve suivantes debutent à 15.00 soit: com- buses will take participants from the missions 4, 10, 14, 16 et 17 , 19 , 20 , Place des Arts to the University. Each 36, 44 et 46. Les reunions des Commis- bus will leave as soon as it is full. Some sions 12 et 49 ne debuteront cependant participants who do not need to go to the pas avant 17.000. D'autre part, le Comité University immediately may prefer to tra - de nomination et le Comité des vel on the regular bus no. 65 at their finances se reuniront à l''universite à 15.30 leisure. et 15.45 respectivement. At the University, because there is only a small number of meetings extending over A cause du nombre quand même both sessions of Tuesday afternoon, we assez restreint des reunions, elles débu- shall not attempt to divide today's mee- teront toutes à la même heure: quant à la tings into "Early" and "Late" sessions. pause-cafe, elle est prévue pour 16.30. There will be a coffee-break at 16.30 Le tout devrait se terminer vers 18.30. for all Commissions meeting today. All Nous deplorons le fait que ces reunions sessions will end at 18.30. We regret se prolongent jusqu'a une heure auss i this late finish but we know that astrono- tardive, mais nous sommes persuades qu mers are so eager to talk astronomy l'intérêt des discussions n'en souffrir that they will notice the time! pas. Those of you who have to stay until the end of the afternoon's sessions may Le délai de temps disponible entre la find it inconvenient to attend the concert fin des sessions scientifiques et le début scheduled for this evening in Old Mont- du concert, à 20.30 est malheureusement real - unless you are prepared to wait for limite et ne pourra permettre à ceu your evening meal until the concert is over! qui desirent assister à cette soirée de dé- Montreal's restaurants will still be ready guster un bon repas, à moins qu'ils n to welcome you even then, but we advise decident de le reporter à la fin du con you to choose Monique Layrac's con- cert. Nous vous suggerons done de teni cert next Monday, if you want to come to one of the Assembl concerts. compte de ce facteur dans le oixch de 1979

August 15 Aout 15

Number 2 Numero 2

Office:- Room No . 1265 Editor :- Michael W . Ovenden Téléphone 343-5889 ALLOCUTION DU RECTEUR DE L'UNIVERSITE

Left to right: M. Jean Drapeau, Montreal, Mme E. A. Muller , I.A .U. M. René J.A. Levesque, Université de Montreal, M. Elie Fallu, Gouvernement du Quebec . Pho to: Pierre Gu zzo Monsieur le Maire, Ce changement d'attitude n'est pas etranger aux succes Messieurs les represent ants des gouv ernement s du Ca- que nous a fait connaitre votre aud ace intellectuelle. nada et du Québec, Les réelles prouesses techniques et humaines dont Messieurs les presidents. vous avez fait preuve ces dernieres années demeurent Distingues invités et collègues, à cet égard exemplaires. Il n'est done pas etonnant , M. B.A. Gingras, Mesdames, en cette période de restrictions des ressources financi e- Photo: Pierre Guzzo Messieurs, res, qu e les critiques soient rares à l'endroit des som - C'est une fierté toute particuliere qui anime l'unive r - mes consacrees aux investissement s et à la recherche sité ces jours-ci au moment oii vous nous faites l'émi- en astroph ysique. nent honneur de vous rassembler ici à I 'occasion de Ainsi grâce à vos longues et patientes recherches, votre 17e assemblee générale. Vous me permettrez sans on peut auj ourd'hui J éterminer avec precision certaines CE E ONIE doute, en vous exprimant les r egrets du recteur, Mon- caracteristiques et certaines propriétés de I 'univers. On sieur Paul Lacoste, de ne pouvoir être avec vous ce commence même à avoir une idée au mains approxip- matin, de vous dire la joie personn el! e que j'eprouve à mative de !'evolution du monde et de ses planetes. vous souhaiter Ia plus cordiale bien venue à 1' Univer - Bien sûr, les enigmes sont encore nombreuses à résou- sité. dre. Nous sommes sans doute encore loin de connaitre L'astronomie UGURALEest la plus president de l'UAI, a remer- Si I'enseignement et la recherche en sciences de fa co n certaine la structure de l'univers, l'origine IN à lle des sciences et pour cié les conferenciers au nom l'Universite remonte à l'annee 1920, c'est vers la fin des des , de la vie elle-meme ou de ses formes eure partie de son de taus les participants. Le annees cinquante qu 'un certain nombre de professeurs extra-terrestres. Il y a quelques années encore, on pou ence a été confondue a- tout s 'est termine sur une du departement de physique ont fait un e place à l'astrophy- vait s'attendre à ce que certaines de ces questions soient l'astrologie. A l'epoque note de gaiété et les astra sique preparant ainsi la voie au groupe d'astrophysiciens !'obj et d'un sourire devant l'ampleur de leur investi- les deux se separerent names se sont joints en ca- dans lesquel se sont concentres plus specifiquement, à gation scientifique. Aujourd 'hui , beaucoup d'astronomes la musique aussi changeait dence aux musiciens au son partir de 1968 , les activites et 1' intérêt de notre commo- ont l'audace d'y faire face en s'associant avec des collè- de forme. Les pieces de Ia de pieces traditionnelles nauté. gues d'autres disciplines pour y r epondre. renaissance exécutées avec quebecoises. To us se sentai- L 'observatoire astronomique du Mont Megantic dontla L'aventure astrophysique moderne, internationale, est un tel realisme par le grou- ent unpeuquebecoispourde- creation date de 1975 , permet maintenant à nos profes- desormais largement multidisciplinaire. On fait main- pe Claude Gervaise ant pion- guster le delicieux dejeuner seurs et à nos chercheurs astronomes et astrophy- tenant appel non seulement à des mathematiciens et à gé les participants aux cé- offert par monsieur le Maire siciens de travailler de plein pied en complementarite des physiciens mais aussi à des chimistes et à des bio- remonies inaugurles dans le aux cong.ressistes dans le fo- avec leurs collègues du monde entier. Cette derniere logistes. passé et probablement cause yer Nobile de la Place des realisation, dont nous nous rejouissons, a rendupossible Au-dela de ses succes, de ses realisations et des la confusion entre des dis- Arts. la participation de l'Universite à Ia grande aventure as- developpements technologiques parfois surprenants aux- ciplines aujourd'hui dis- trophysique moderne dont les developpements et les quels elle a donné lieu, l'astronomie, en 1979, demeure tinctes. Les sons entreme- Monsieur le maire saw a applications technologiques ne manquent pas d'être pas- la discipline qui , plus que toutes les autres, perpetue lés de la musique ancienne mystical significance to the sionnants non seulement pour les experts scientifiques de façon dynamique une des plus anciennes activites et des discours de bienve- presence of the IAU in Mont- que vous êtes, mais egalement pour I 'ensemble du pu - humaines: celle d'interroger le ciel, de contempler les nue des representants de la real. Astronomy is not only plic. La mise en marche prochaine, à Hawai , du téles- etoiles, d'observer l'univers et de poser des questions ville de Montreal, du gouver- an exact science but a huma- cope issu de la cooperation bénéfique entre le Canada essentielles avec, plus que jamais, 1' espoir de glaner nement du Canada, du gou- nistic one. In this sense the Ia France et Hawai, permettra d'accroitre le réseau maintenant des reponses qui permettent chaque fois de vernement du Quebec , de presence of the astronomers d'observation et I' étude de l'univers. Si l'on ajoute à comprendre un peu mieux le monde que nous habitons . l'universite de Montreal et in a cosmopolitan city like ceci, l'honneur que vous nous faites de tenir votre im- J'espère que durant ces dix prochains jours, vos du Conseil national de la re- Montreal is symbolical. E- portant congres dans nos murs, vous comprendrez no- discussions no us ameneront, elle aussi, au terme de cette du Conseil national de re- verybody is looking forward tre heureuse satisfaction de constater le dynamisme !Be assemblee gérérale, à une meilleure connaissance cherches ont captive les to a productive assembly but dont vous faites preuve dans votre discipline et vos de 1' univers et ce sont les voeux que je vous adresse auditeurs à la salle Wilfrid as M. Fallu says " la science activites. nom de l' Universite et en mon nom . Pelletier de la Place des d'abord et le plaisir en- L'etude de l'univers, vous Cabinet du recteur Arts. M. Adriaan Blaauw, le suite." tant 1e 13 août 1979 EDITORIAL A TIM FOR RENEWAL ABOUT YOUR To every thing its proper season Monday was season for renewal - of old friendships old discussions, old arguments. And where better to meet old friends than at the evening reception given by the Rector of the Université de Montreal. Participants were graciously NEWSPAPER received in the great "Hall d'honneur" of Pavilion Principal by Mr. René J.A. Léves- que, Vice-Recteur à la Recherche. METEOR(E) is an ad hoc publication on the back page of the newspaper. Conversation flowed freely with wine, as old acquaintance was not forgotten, but re- produced especially for the General As- sembly as a means of infoming parti- There is a section for the printing of membered - pu together again. Friendships nourish in spite of - or perhaps because of- letters from participants. If you have the fact that they are renewed only once every three years. With the greetings and cipants about what is and has been going on , to provide up-to-date information on anything to say about the Assembly, which reminiscences came the apologies for letters unanswered, wine spilt, faces misplaced would be of general interest, or the news- and names forgotten. changes to the programmes and time- tables of commission meetings, joint dis- paper, please write to us, letting us know The steps of the PavUlon Principal were covered with astronomers, the late-comers that you letter is to be considered for mixing with those seeking fresh air and space. The old hands who bad been here for cussions, evening discourse, etc. We will provide background information on the or- publication. Of course, we cannot guaran- several days and knew (almost ) all the routes on campus smiled benignly upon the tee to publish every letter submitted; pu- baggage-laden seekers after the Student Residences. Of course there ganization of the Assembly, articles on Montreal and its environs, and other blication is at the sole discretion of the are always too many people - so that those friends you particularly wanted to see Editor. A letter will be published in cannot be found. But if there were not so many participants, the people you want to features that will (we hope) add to the enjoyment of your stay in Canada. either French or English, in the language see would not be at the meeting! And for the older members, recalling many past in which it is received. assemblies, a touch of melancholy in the memory of the friends that will come to no The languages of the newspaper will more I.A.U.'s. be French and English. Some officials A time for renewal of friendships - and renewal of enthusiasm. To keep us informed of the delibera- notices may be published in both langua- tions of the various commissions, we are ges, but generally an article or feature asking each President of Commission to will be either in French or in English. appoint for us a Special Correspondent, There will be a number of regular fea- who will send us summaries of impor- L' LE M tures. The Bulletin Board will include tant papers which have been discussed par KATHY SILVER special announcements, both official and in his or her commission, and from Un simple ticket de métro donne accès et de Guillaume Couture ainsi que des unofficial. Announcements from the IAU which we can select items of general au trésor artistique enfoui sous les rues scenes abstraites representatives de Ia Secretariat will be identified by the logo interest. We also have two Staff Repor- de Montreal. musique abstraites p representatives de la ,those of the National Organi- ters, who will be attending Joint Discus- II s'agit ici d'une collection unique et in- musique canadienne contemporaine. Toute- zing Commitee by and those of the Lo- sions, Commission meetings, and other comparable de murales, sculptures, vitraux fois, pour apprecier convenableme.nt cette cal Organizing Committee by functions, and interviewing some of the disséminée un peu partout dans le réseau murale, il faut emprunter le tourmquet de participants of the Assembly. In this way de transport metropolitain de la ville. sortie et ensuite remettre un nouveau ti- Announcements by Presidents of Commis- we hope to reflect the progress of the Le métro de Montreal est bien plus qu 'un cket pour continuer la tournee (l'acces au sions will be identified by the Commis- Assembly 'as it happens '. moyen rapide et efficace de traverser Ia métro coûte 50 cents en monnaie mais le sion number. Notices for the Bulletin ville: les Montrealais sont fiers de sa prix d'un livret de 13 tickets est de cinq Board must be in the METEOR(E) Office METEOR(E) is printed and published sécurité, de sa beauté et de sa proprete. dollars.) (Room 1265) by 3.00 p.m. on the day be- on behalf of the National Organizing Com- Inaugure en 1966, le métro comptait alors Station Cremaxie un vertigineux bas-re- fore the issue in which the notice is to mittee. IT is not an official publicatior 28 stations reparties sur 14 milles de voies lief de blocs multicolores est rehausse des appear. Notices will be published in the of the IAU. Except where the material Les urbanistes ayant confié chaque station portraits en fer forgé des poetes canadiens language or languages in which they are has been provided for the newspaper by the à un architecte different, Ia variété est re- Cremazie, Frechette et Nelligan. submitted, so that if you wish your notice IAU Secretariat, the IAU has no respon- marquable et chacune à son caractere pro- Reliée à d'importants grands magasins to appear in both French and English, you sibility for the contents of the newspaper. pre. Ainsi, des incrustations circulaires de du centre-ville, Ia station McGill est ornée jwish your notice to appear in both French Opinions expressed, especially in the Edi - carreaux de ceramique aux vives couleurs d'un vitrail en cinq panneaux decrivant Ia and English, you must submit both ver- torial and Correspondence sections, are signalent Ia station Peel. vie montrealaise du 19e siecle. sions. It would be impossible for the those of the individuals concerned, and Dans plusieurs stations, des oeuvres En 1976, le prolongement du métro a a- staff of the newspaper to undertaketrans- are not necessarily the opinions either of commanditees par 1'entreprise pri vée ill us- jouté neuf stations à !'architecture vairee, [ations at a time when they would be bu- the IAU or of the National or Local Or- trent l'histoire de Montreal. integrant encore davantage le concept artis- sy making up the next issue. ganizing Committees. D'importantes murales peuvent être ad- tique au design golbal. mirées dans les stations Berri de Mon- Dans les nouvelles stations, l'art s 'ex- The latest available details of changes Copies of METEOR(EO will be available tigny, Place des Arts, Cremazie, McGill, prime plut6t de façon abstraite par rapport in times and programmes of commission each day, near the Information Desk, 3200 Peel, Champ de Mars, Sherbrooke, Papi- à la representation figurative historique meetings will be included in the feature rue Jean- Brilliant, from approximately neau et Square Victoria. des anciennes stations. Les nouvelles oeu- Today's Events which will appear daily 8.30 a.m. Station Berri-de-Montigny - carrefour vres ont été commandees par !'administra- du reseau - un spectaculaire vitrail il- tion municipale. luminé à cotre-jour rend hommage aux Sept des neuf nouvelles stations compor- pionniers de Ia ville. On le voit du quai tend des oeuvres d'art: Joliette, Pie IX, de Ia ligne no l. Viau, L'Assomption, Cadillac, Langelier et Dans la station Place-des-Arts, un chef- Honore-Beaugrand. d'oeuvre, elle même, ce sont des carreaux Sauf aux heures de pointe, il est facile BULLETINS de ceramique aux doux tons de bleu et de de s'asseoir confortablement et de reposer blanc qui expriment, dans un vaste espace ses pieds pendant qu 'une rame de métro bien dégagé, !'oeuvre artistique. vous emporte, d'une murale à }'autre, dans Sur le mur est de Ia mezzanine, un vi- la galeri d'art souterraine de Montreal. trail éclairé en contre-jour relate !'evolu- CORRECTIONS tion musicale de Montreal. On y decouvre Reproduit avec la permission de CORRECTIONS TO des portraits stylises de Calixa Lavallee PROMENADE, Avrill978. A L'AMENAGEMENT EXHIBITS FLOORPLAN DES KIOSQUES Last minute changes to the floorplan: Changements de derniere minute à The Working Group on Photographic l'amenagement des kiosques: Problems (old no . 24) will now be no. Le Groupe de travail sur les pro- 13 , blemes photographies (auparavant auno. Centre des Donnees Stellaires (old 24) est maintenant au no . 13 . no . 25) will now be found on the oppo- Le Centre des Donnees Stella ires (au- site side of corridor near stairs. paravant au no . 25) se trouve mainte- Gall Publications (formerly no. 12) nant près de l 'escalier, de !'autre côté will now be found at no . 5. du corridor. Eastman Kodak (formerly no. 13 will Gall Publications (auparavant au no . now be found at no . 12. 12) est maintenant au no. 5. Eastman Kodak (auparavant au no. 13) est maintenant au no . 12. John Glaspey

Commission no. 37

Administrative Session - August 17 - Timbe b Room B-2305 Subjects for discussion 1. Choice of Organizing Committee 2. Nomination of new members 3. Discussion of new cluster nomenclature proposal. Due to the fact that I.A.U . Symposium No . 85 (Starel-Sters) will take place in two weeks. Our commission will have no scientific meetings other than joint sessions together with commision no . 5 (nomenclature) August 14 c,d and with Commission 24 (Space Astronomy) August 16 a,b, Une vast murale dédiée à Ia mémoire de Louis-Joseph Papineau orne le mur qui fait face Sidney Van der Bergh i Ia passerelle de Ia station. Les parois de deux arches commemorent les événements President patriotiques de 183'7 et 1838. MAN OF MONTREAL- STEPHEN LEACOCK "I was born at Swanrnore, Hants, England, on December of his posthumously-published writings there is an in- 30, 1869 . I am not aware that there was any particular teresting historial sidelight. Evidently he had been to conjunction of the planets at the time, but I should a lecture by Hubble who had cast doubt upon the expan- thing it extremely likely." Thus wrote Stephen Lea- sion of the Universe. " This is good news indeed! cock , Professor and Head of the Department of Eco- But the relief is tempered, on reflection, by certain doubts and afterthoughts. It is not that I venture any "I was born at Swanrnore, Hants, England, on De- disbelief or disrespect towards science, for that is cember 30, 1869 . I am not aware that there was any as atrocious in our day as disbelief in the Trinity was particular conjunction of the planets at the time, but in the days of Isaac Newton. But.. .. if we expand today I should think it extremely likely." Thus wrote Stephen and contract tomorrow. .. we begin to doubt whether Leacock, Professor and Head of the Department of Eco- science can quite keep on believing in and respecting nomics at McGill University, and one of the greatest it elf." humorists of the English-speaking world of this centu- Did his roles as economist and humorist ever get ry. His father had been something of a 'rolling stone'. confused? He used to tell with glee how one fan read Having failed to make a success as a farmer, first in halfway through his 'Elements of Political Science' South Africa and then in Kansas, he finally brought his laughing uproariously - until he found that it was meant family to Canada in 1876, setting up horne in the Lake to be taken seriously. It is hardly to be expected that Simcoe area of the new province of Ontario. Stephen Leacock's enjoyment of public acclaim would It was to his mother Agnes that Stephen Leacock have left his academic colleagues entirely unmoved . Yet owed his interest in learning. She had had the foresight in a way it was his academic life that gave him his to bring text-brooks and reading material for her chil- greatest satisfaction. He would make fun of it, saying dren when they embarked for the 'wilderness'. He "I am able to regard myself as singularly fortunate. was to proceed steadily up the academic ladder. re- The emolument is so high as to place me distinctly ceiving his Ph.D. in economics from the University of above the policeman, the postman, stree-car conductors, Chicago in 1903, an event which (in a rare moment and other salaried officials of the neighbourhood, while of false modesty) he was to say meant that he had been Stephen Leacock. By Don I am able to mix with the poorer of the businessmen of examined for the last time in his life, and pronounced Courtesy: - McGill University the city on terms of something like equality. In point completely full. After this, no new ideas can be imparted of leisure, I enjoy more in the four corners of a single to him". After a brief spell as a teacher at Upper of the Royal Society of Canada in recognition of his year than a businessman knows in his whole life. I Canada College, he went to McGill University, where great contribution "to the growing reputation of Ca- thus have, what the businessman can never enjoy, an he was to remain for the term of his academic career. nadian letters." ability to think, and, what is better still, to stop thinking As an academic, he wrote several serious books, Humour is a serious matter, though Leacock was for months at a time. "For over thirty years he would starting with his 'Elements of Political Science' in perhaps at his least successful when talking seriously spend his winters in his house here on Côte des Nei- 1906. This rapidly became a standard text-book, and about humour. He has been criticized for not aiming ges - his summers at Old Brewery Bay in Orillia. he is said to have earned, over the years, more money his shafts more directly at social injustice. But He wrote " My permanent address (in this world) is with this book than with any single one of his best- Leacock's humour was never superficial. He had a keen McGill University". selling works of humour. No doubt he could have rea- eye for pretension and hypocrasy; but above all, he After his unwilling retirement in 1936 , he continued ched the highest honours in the academic world, had was ever conscious of the gulf between what life was to write and lecture. During the war, he became a he so chosen - but a certain puckish element in his and what it might have been. His laughter was never sort of unofficial ambassador for Canada - as he looked character urged him to write down some of his hu- very far from tears. to the post-war future with the optimism that had ins- morous conceits. It was Stephen Leacock the humo- Scientists did not fail to come under his lash. Although pired his work throughout. It was a future he was not rist who was later to receive the Lorne Pierce medal he only rarely touched on astronomy explicitly, in one to see. He died in 1944 .

(Extraits de Ia revue L'lnterdit) DE MONT EAL "En 1876, à Ia suite d'une dernan- " L'excavation commença en 1927. A de de Mgr. Ignace Bourget, évêque de cause de Ia denivellation, il fallut créer Montreal , pour obtenir nne universite deux paliers d'assises de I 'irnmeuble. Tout dans sa ville episcopale, Ia Sacrée Con- le roc excavé servit à eriger le grand gregation de Ia Propagande proposa à plateau qui fait face à Ia cour d'honneur. l'Université Laval d'etablir à Montreal Les ailes ABCet TUV reposent sur des une succursale où l'on donnerait la mê- caissons de 5 à 25 pieds de profondeur, me formation qu'à Quebec. Les facultes alors que la partie arriere repose direc- de théologie et de droit s 'ouvrirent en ternent sur le roc. Cela n'alla pas sans 1878 , celle de rnedecine en 1879 et celle mal. On decouvrit une grande faille dans des arts en 1887. Cette succrusale de- le terrain. La construction de I 'irnrneu- vint entierernent autonorne entre 1920 et ble commença en 1929 rnais en 1931 , vu 1923 . Ses batirnents etaient alors épar- Ia crise econornique , ce fut l'arret corn- pilles au centre-ville. On se mit à son- plet des travaux. Tout I 'imrneuble dans ger à Ia creation d'un nouveau campus. sa forme actuelle était déjà terminé moins II fallut choisir entre trois ou quatre la tour. La coquille exterieure était bien sites. On décida finalernent d'accepter là, mais I'interieur était vide. Tout fut une offre de Ia Ville qui rnettait une immobilise pendant 8 ans. On ne pouvait Uni partie du versant ouest du Mont-Royal voir sans tristesse cet immense imrneu- être construit. Quelques annees plus tard, rneilleurs projets en Amerique du Nord . à la disposition de l'Université. Ce choix ble fantome aux vitres brisees et aux ce projet fut repris rnais les coûts étant Une rarnpe mobile couverte permet l'ac- fut justifie par le fait que Ia rnajorite ouvertures des premiers etages ferrnees prohibitifs, on decida d'abandonner com- cès facile du campus par les pietons. de la clientele etudiante derneurait dans par des panneaux. L'entretien en coû- pleternent l'idee d'un hopital universitaire L 'Université possède egalement, dans les quartiers environnants." tait fort cher et pesait lourd sur le bud- au profit d'affiliations de la Faculte de les rues avoisinantes, d'autres batirnents "On confia à l'architecte Cormier Ia get de fonctionnement de 1'Universit é du medecine avec les hopitaux en place à acquis au cours des dernieres annees. responsabilite d'etablir le plan de déve- centre-ville. En 1940-41, le gouvernement Montréal". Hors campus sont logés, !' Ecole de mé- loppernent de l'Université. Ce qu'il irna- dut intervenir et I 'on créa la Société "La grande phase d 'expansion de I 'u- decine vétérinaire, à St-Hyacinthe, la Sta- gina était revolutionnaire à l'epoque: un d'adrninistration de 1'universite . On rené- niversite de Montreal se situe entre 1963 tion de biologie, dans les Laurentides et irnrneuble capable de loger 6000 etudiants gocia Ia reprise des travaux. L'entre- et 1968 , alors que de nouveaux pavilions 1' Observatoire astronornique du Mont- et de reunir sous un même toit toutes preneur respecta son contrat rnais il fal- virent le jour sur le campus. Le budget Megantic, dans les cantons de l'Est. les facultes et services ainsi qu 'un hô- lut moderniser certaines installations. de construction, pendant cette période, rut pital universitaire. Au centre, il y au- Seul le bloc est fut terminé." de 1'ordre de $1,000 ,000 par mois, so it rait le hall d'honneur, la bibliotheque "On pensait toujours installer I 'hôpi- une sornrne totale de $56 ,000,000 ." et !'auditorium. En arriere, à l'ouest, tal universitaire dans le bloc ouest, mais On trouve aujourd'hui sur le campus. WATCH ce serait Ia chapelle et à l'est, les clas- il était plus urgent de déménager l'Uni- outre le pavilion principal, deux grandes ses. La tour était d'inspiration byzanti- versite St-Denis au nouveau ecoles affiliees: !'Ecole Polytechnique et ne; c'etait le point de ralliernent de tou- campus, ce qui fut fait en 1943 . Quant à 1' Ecole des Hautes Etudes Commerciales THIS SPACE ( 1) te Ia construction. Cormier avait choisi Ia farneuse avenue en facade, elle fut le Pavillon Maximilien-Caron (droit). le une brique de Canton , Ohio, jaune pâ- cornpleternent abandonnée. Pendant la Pavilion Lionel-Groulx (sciences humai- le, naturellernent impermeable. L'irnrneu- crise, les terrains avoisinants avaient été nes), le Pavillon 3200 rue Jean-Brillant ble courirait une surface de 925000 pieds achetes par des particuliers et I 'Univer- centrale therrnique et le Pavillon du Ser- carres. Ce serait un des plus grands en sité avait été impuissante à ernpecher le vice des batirnents et terrains. trois ré- Amerique du Nord. Pourquoi voulait -on developpernent du quartier. Afin de pou- sidences pour etudiants, le Centre com- 1' edifier à un endroit aussi élevé? Tout voir executer le projet d'hopital et de rnunautaire, le stade d'hiver et le Pavil- sirnplernent pour qu'il soit vu de très parachever le campus avec des services Ion d'education physique et des sports. loin et aussi parce que I 'architecte avait adequats aux etudiants: centre social, ré- Le garage Louis-Colin, d'une capacité de !'intention de faire paver une allée en sidence, gymnase, etc., on organisa, en 1,300 voitures, reçut en 1971 trois prix pente qui irait de la cour d'honneur jus- 1948 , une campagne de souscription qui dont le prix canadien Vincent-Massey pour qu'au Chemin de Ia Côte-Ste-Catherine. devait rapporter 10 millions et qui eut !'edifice le plus fonctionnel de l'année, le 20,000 B.C. The inhabitants of the paper De chaque côté de cette avenue on tenement de succès qu 'on recueillit 13 prix des fabriquants de béton du Canada construirait des rnaisons qu'habiteraient millions. A l'epoque c'etait enorme. Pour et le prix de la revue americaine Colle- square have no diea of the fundamental des raisons politiques, l'hopital n'a pu ge and University Business, pour les dix nature of the Universe in which they 1es professeur de 1' Université" live. EXHIBITS, DISPLAYS TONIGHT'S DIS COURS E AND TRADE-SHOWS DURING HE A S MBL Y Gerhard HerzbergGEHARD was born in Germany and studied HERZBERG A variety of astronomy- tein' s scientific work is na- at the Darmstadt Institute of Technology. He came to related exhibits will be a- turally featured in the ex- North America in the early 1930 's and has lived and vailable for our inspection on hibit, but the extensive il- worked there ever since. He fi rst went to the University the Universite de Montreal lustrations and authoritative of Saskatchewan, in Saskatoon, then to Yerkes Observa- campus during the forthco- text also give insight into tory, whence be returned to Canada in 1948 , to take_up ming week . As a first exam- his political and social work an appointment in the Ottawa laboratones of the Natio- ple Commission 41 on the his philosophy, and his cha- nal Research Council of Canada. He stayed there until History of Astronomical racter as a human being. " his retirement - and beyond, since he still works the- Photography, to be shown A variety of major obser- re as a Distinguished Research Scientist. from August 14 to 23 in the vatories, laboratories, a- Dr. Herzberg's work has been on the structure and Gal erie d'Art of the Ecole gencies and scientific socie- spectra of both atoms and molecules. His book " Ato- des Hautes Etudes Commer- ties will have exhibit booths ciales (on the ground level, mic Spectra and Atomic Structure", publ_ished in 1944,. is set up along the second floor still a useful, and much used, mtroduchon to the topic. joining Pavillon 3200 Jean- corridors during the full Altougb this work lies in the borde_rline between phy- Dr. Gerhard Herzberg Brilliant to H.E .C.). Obser- periode of the meetings at vatories from all over the the U. de M. Each is men- sics and chemistry, it bas many pomts of contact with about this interaction between the two disciplines that Dr. astronomy and Canadian astronomers have always been world have contributed to tioned on the simgle page Herzberg will talk tonight. this exposition, which also Exhitib Floorplan provided proud to regard Dr. Herzberg as one of the foremost It would be wrong to introduce Dr. Herzberg only by of their colleagues - a pride that was naturally much includes a special exhibit in your Registration Packet. reciting his distinctions and achievements. Those of us on loan from the Merseysi- We would like to remind you increased when be was averded the Nobel Prize for in the relatively small Canadian astronomical community Chemistry in 1971. de County Museums, Liver- to stop by these booths and who have bad the privilege of knowing him can testify pool , England. Any astro- get reacquainted with these Amongst his other honours, Dr. Herzberg is a Fellow to a man, fortright indeed in his opinions, but modest, of the Royal Society of London , an honorary member of nomer having contact with special friends. unassuming and warm in his personal relationships. We the photographic process Not to be overlooked ei- several other national accademies, and was President ar delighted that Dr. Herzberg has been chosen by the of the Royal Society of Canada in 1966-67. He has :eceived will find it fascinating to see tber, and astronomical IAU Executive to represent Canadian astronomical com- the impressive efforts and the highest honour that Canada can bestow, having been "Trade Show " will take pla- IAU Executive to represent Canadian astronomy since accomplishments of some of ce Monday , Tuesday, and admitted as a Companion of the Order of Canada in 1968 . his topic, of the many studied by Canadian astronomers, The increasing interest in, and discoveries of, mole- the true pionners in this Wesnesday, August 20-22, is the most timely, and we are confident that they could field . also on the second floor cor- cular spectra of astronomical origin, maintly by radio not have found a better representative. observations, has naturally given the work of Herzberg There will also be a great ridors of the Pavillon 3200 deal of interest in the Eins- Jean Brillant. We will des- and his collaborators increased importance in the eyes Dr. Herzberg's Invited Discourse on "The Interplay of of astronomers. This work has both stimulated and been tein Centennial Exhibit , on cribed these exhibits in mo- Molecular Spectroscopy and Astronomy" will be held loan from the American Ins- re tetail in a later issue, stimulated by the new observational results, and it is in the Grand Salon, Queen Elizabeth Hotel. titute of Physics. As des- but we would like to point ------cribed by Dr. Spencer on out that D. Reide Publis- Une realisation loan from the American Ins- hers, the official publisher Les Promotions titute of Physics. As des- of the IAU , will have its A PROPOS DU ''CONCERT cribed by Dr. SpencerWeart booth open from August 15 Claude Girardin Director, AIP, center for to 22 to take care oa IAU Composé et imprime par related orders. Web Offset Inc. History of Physics, "Eins- par Dr. J.PDES. Brunet ASTRONOMES''transporter leur instrument A very good idea: c'est avec eux . assurement le commentaire Dans les faits, qu'en est - qui revient le plus souvent il? Après ia pa r ution d'une dans les missives que j'ai note dans le programme pré- reçues à ce jour, veille de liminaire, il s 'est avéré que cefte SVII Assemblee géné- les delais seraient très rale. courts pour echanger entre Bien sûr, lorsque, en nous , quelques idées, quel- fevrier 1978 , j'ai propose au ques propositions , decider, Comité National d'organisa- organiser. Et puis, il y a eu tion !'idee du "Concert des ceux qui croyaient pouvoir Astronomes", je me doutais aller à Montreal et qui, au de Ia difficulte d 'une telle dernier moment , n'ont pu Dr. J.P. Brunet entreprise. J 'etais persuade realiser leurs espoirs. II ne tenter le pari. Nous verrons depuis longtemps que parmi faut pas oublier aussi que les lors d 'une premiere prise de mes collègues français et é- astronomes sont de grands contact, si nous saurons ré- trangers, setrouvaient nom- voyageurs et que le courrier soudre les problemes qui bre de musiciens, qu'ils a souvent du mal à les rat- restent pendants: louer des soient melomanes ou instru- traper. Sans compter égale- instruments, definir un plan- mentistes. Pourquoi alors ne ment sur lesgrevesdespos- ning pour les répétitions pas essayer de regrouper tes, les vacances familiales sans perturber l 'activite ces derniers pour créer un . . . et Ia preparation intense scientifique de chacun ... et ensemble musical qui aurait des sessions scientifiques. etablir un programme. plaisir à jouer devant les Car on neva pas à Mont- Le concert aura lieu le premiers? réal dans le seul but de jouer 20 août à 21.00 à Ia chapelle Mon but était de constituer de Ia musique mais pour de l'Eglise des Dominicains une chorale car, dans ce cas, rencontrer nos collegues et (2715 chemin de Ia Côte Ste- !'instrument est facile à pour echanger. Et Ia m u- Catherine). Au nom de mes transporter. Et qui n'a pas sique n'est elle pas une ac- collegues musiciens, je vous chante dès son premier âge? tivite ideale pour mieux se invite à assister nombreux à Une autre possibilite était connaitre, pour "faire en- ce premier "Concert des de former un orchestre si les semble" pour soi et pour les Astronomes". Vos reactions participants acceptaient de autres. sauront nous faire com pren- transporter leurs instru- Nous sommes vingt - et dre si cette expérience peut ment avec eux. c'est bien peu - prêts à avoir un lendemain. EXPOSITION DES AMATEUR ASTRONOMES ASTRONOMERS' AMATEURS EXHIBITION L'exposition d'astronomie qui se dé- The astronomy exhibition which will roulera sur Ia Place du Complexe Des- be held in Place Desjardins (Metro Place jardins (Métro Place des Arts), du 16 des Arts) from 16 to 18 , is meant to au 18 aouût, se veut representative de be representative of all the amateur tous les groupes d'amateurs qui font de groups whose main leisure activity is l'astronomie comme principal loisir. astronomy. Displays of apparatus cons- Projjets de construction d'appareils, d'é- truction projets, various studes, and tudes diverses et presentation des di- presentation of the organizations working vers organismes oeuvrant dans le do- in the field of astronomy will be the maine de l'astronomie seront les prin- main items of this exhibition. More- cipaux éléments de cette exposition. En over, a French delegation will be there plus, un groupe de Francais viendra to present some of the aspects of ama- completer en apportant quelques reflets teur astronomy in France. Admission de l'astronomie amateur en France. En- free. trée libre. 1979

August 16 Aout 16

Number 3 Numero 3

Office:- Rcom No. 1265 Editor:- Michael W. Ovenden Téléphone 3 43-5889

RESUME DE CONFERENCE SOLENNELLE ''L'INTERACTION ENTRE LA SPECTROSCOPIE ET L'ASTRONOMIE'' par G. Herzberg, Conseil National de recherches, Canada

Depuis les toutes premieres études en tions entre Ia spectroscopie moleculaire che. cherches eo laboratoire, on a graduelle- spectroscopie astronomique, me interac- et l'astronomie. II traita tour à tour ment réussi à accumu1er les donnees tion des plus fructueuses s'est toujours des contributions apportees dans le do- ETOILES essentielles à la solution de ce proble- maintenue entre les travaux experimen- maine des atmospheres des étoiles et des me. Aujourd'hui, une seule energie de taux et les observations astronomiques. planetes, de Ia structure des comètes et Notre comprehension de !'atmosphe- dissociation importante, celle du CN , de- Le professeur Gerhard Herzberg pré- de la nature du milieu interstellaire. re complexe des étoiles les plus froi- meure encore incertaine. sentait dans sa recente conference une Le conferencier concluait son exposé en des dépend, en grande partie, d'une con- Parmi les grands succès des recher- splendide revue des nombreuses interac- indiquant les avenues futures de recher- naissance détaillée des nombreuses molé- ches experimentales, on compte la décou- cules qui s'y trouvent et de leurs éner- gies de dissociations. Grâce à des re- (Suite en page 4)

Le groupe 4050 dans Ie laboratoire et dans une comete. Le spectre cometaire est celui de Ia comète Cunningham 1940 obtenu par Swings (PASP 54, 123 (1942). Le spectre de Iaboratoire est celui d'une decharge continue dans le CH4, d'apres Herzberg (Ap. J. 96, 314 (1942).

LE RAPPORT D/H Un resultat interessant a été mentionne à Ia discussion commune sur l'astrooo- mie ultra-violette. Dans une revue présentée par M. Jura sur les observations du milieu interstellaire il fut reporte que 1e rapport D jH n'est pas constant, qu'il varie selon Ia direction d'observatioo dans la galaxie. Les observations furent faites par Laurent et Vidal - Major. Le rapport DJH est utilise pour déterminer Bande d'absorption de H2 autour de 1090 à dans l'espace ioterstellaire, d'apres Ia courbure de l'univers et ces nouvelles observations remettent cette technique Spitzer et al. (Ap. j. 181, L 116 (1973), et dans le laboratoire. . en question. Ces resultats furent evidemment contestés par d'autres astronomes Le spectre interstellaire fut obtenu par le satelllte Copernicus et le spectre et il s'en suivit une discussion animee. de laboratoire par le spectrographe à vide de 10 m du CNRC . We . have already he.ard much about the C.F.H.T. at the inaugural ceremony. LE TELESCOPE CANADA-FRANCE- Here 1s futher 1nformahon about the telescope FIRST LIGHT AT THE CANADA-FRANCE-HAWAII Le telescope Canada-France-Hawaii est "qualité d'image" au Mauna Kea est en gé- géré en commun par le Conseil National de néral d'une seconde d'arc et très souvent Recherches du Canada, le Centre National mains, ce qui le place au premier rang The first photons were captured by the C.F.H.T. in the night of August 7 at de Ia Recherche Scientifique de France et des sites de grands telescopes, com me ceux 2.15 a.m. Hawanan time. Drs. Cayrel and Odgers, the directors of the obser- l'Université de Hawaii, USA . du Chili vatory were at the controls and M. Jean-Claude Fouéré, the optical engineer, La France et le Canada ont pris en char- · En raison de !'altitude, mais aussi in the prime focus cage. A large staff attendance was recorded. No picture was ge à égalité le coût de Ia construction, de Ia faible densite de population de l'ile taken and the telescope was only made to guide a . The tlescope guided and l'Université de Hawaii fournissant quant à le ciel au-dessus du Mauna Kea 'est très set well. At dawn Californian champagne was served at mid-level. The first elle le site et son infrastructure. Le temps noir, des nuages recouvrent habituellement p1cture was taken on August 12. d'observation disponible se repartit ainsi: les regions les plus peuplees de l'ile au Canada et France 42 .5% chacun. Université bord de Ia mer; Ia pollution lumineuse dé sont traites pour minimiser les pertes de Hawaii 15%. n'est done pas à craindre pour de nom- de lumiere. Bien qu'il y ait 5 astronomes residents breuses annees à venir. Au centre, un pilier cylindrique en béton l'observatoire a été prévu pour être prin- · Comme Ia vapeur d'eau est concentree de 17 metres de diametre porte le téles- cipalement à Ia disposition des astronomes dans les basses altitudes, I 'air au-dessus cope et contient 3 grandes pièces deux des trois pays fondateurs . d'une montagne est normalement très s·ec. salles coudé et une salle pour l'aluminure La construction commence en 1974 , a duré Par nuit claire au sommet du Mauna Kea des miroirs. Entourant le pilier se trouve un peu plus de 5 ans. Les pièces mecani- Ia quantite d'eau dans une colonne d'air le batiment annulaire gui supporte Ia cou- ques ont été élaborées en France, l'opti- verticale est inferieure au millimetre alors pole et le plancher d'observation. Ce bâ- que, le systeme de controle-commande et qu'elle est generalement de l'ordre de 10 timent com porte quatre niveaux en-dessous la coupole au Canada. mm au niveau de Ia mer. Etant donné que du plancher d'observation dans lesquels se trouvent la salle de commande du té- L'instrumentation de _base a été conçue la vapeur d'eau est Ia source principale et fabnquee par des instituts scientifi- d'absorption de l'infrarouge dans !'at- lescope, Ia salle d'ordinateurs des cham- ques dans les trois pays participants. mosphere, le Mauna Kea est un excellent bres noires, un laboratoire electronique, L'observaoire·a été implante au sommet site pour les observations dans l'infrarou - un atelier et d'autres salles pour equipe- de Mauna Kea, dans l'ile de Hawaii à ge. ment divers.La coupole a 32 metresdedia- environ 300 km d'Oahu , l'ile principale ou mètre et a Ia forme d'une demi-sphère se trouve Honolulu, Ia capitale de 1' Etat. outrepassee. Pour reduire Ia turbulence Ia Mauna Kea et sa montagne soeur Mauna fe rm eture de la trappe est du type "ci- Loa sont 2 gigantesques volcants qui s'é- mi er ". levent à qu elque 4200 m au-dessus de l'O- Plusieurs instrum ents d'observation sont Historic photo of globular cluster Ml5 , céan Pacifi que. Mauna Kea , à la différence à la disposition des astronomes, en pa r - the first taken with the C.F.H.T. The de Mauna Loa qui est encore en activité, ticulier deux chambres photographiques , pic ture was taken on Plus-X with a 35 mm est un volcan dormant depuis au moins 4000 des photometres pour Ies do maines visi- camera fitted to the prime focus.Derick ans; son somm et . composé d'une série de bles et infrarouge, trois spectographes de Salmon was in the prime foc us cage. Drs. petits cônes de cend re, est aride et sans resolutions faible, moyenne et élevée, un Cayrel and Odger s were in the control aucune végétation. Bien que l'ile soit située polarimetre et un interferometre utilise en room. The 1 minute exposure was not sous les tropiques, il arrive que les con- spectrometre à transfo rmee de . guided and should not be taken to illus- ditions atmospheriques au sommet soient On trouve aussi plusieurs r ecepteurs u- tr ate the performance of the telescope . tilisant les techniques les plus r ecentes, rudes, surtout en hiver , des tempetes peu- EEnfin un ensemble d'acquisition de don- vent y deposer plusieurs décimètres de en particulier un recept eur à reticon Le télescope après achèvement du po ur la spectroscopie, des r ecepteurs à nees et de commande de I 'instrumentation neige et le thermometre descendre jusqu'a à miniordinateur et interface CAMAC sont -15C . A cause du manque d'oxygène dû montage (1979) co mptage de photons pour les très faibles à niveaux de lumiere et une camera electro- egalement mis à Ia disposition des obser - !'altitude, certaines per sonnes s 'y sentent vateurs. mal à l'aise ou lethargiques, surtout la · Enfin Ia basse latitude du site (20o) per- nographiqu e. premier e fois, mais ces legers désagré- met d'observer jusqu'a 90% du ciel. ments sont largement compenses pour les En raison de la rarefaction de I 'air au astronomes par les excellentes conditions somm et (50% de !a pression atmospherique d'observation, dues justement à Ia haute normale), astronomes et techniciens ne res- altitude qui place le sommet de Mauna tent pas en haut entre les observations Kea au dessus de 40% de !'atmosphere ou les periodes de travail, mais descendent MAISON D terrestre. Plus specifiquement les princi- au ':camp de base" à 12 km du sommet, à paux avantages astronomiques du site sont l'alhtude de 2800 m où ils trouvent dortoirs, les suivants: restaurant, bibliothèque et salles de repos . Le siège de la Société du Telescope Ca- ADIO-CAN nada-France-Hawaii se trouve à Waimea · La plupart du temps le sommet domine à environ I heure de route du camp. What has six sides, wears 17,000 costu- With 26 radio studios and eleven color Ia couche nuageuse qui recouvre les bases _Le _miroir primaire est parabolique et le mes and speaks eleven languages? TV studios, the 73 million dollar Maison de la montagne. Dans 60% des nuits !'ab- miroir secondaire est hyperbo- What else but the Maison de Radio- is among the world 's largest and most sence complete de nuages et Ia très fai - lique. Cette configuration " classique a été Canada - the multi-million dollar broad- modern broadcasting centres, and one ofthe ble turbulence de !'air creent des condi- choisie car elle permet !'observation aux casting centre owned and operated by the most important producers of French- tions ideales pour les observations photo foyers primaire et cassegrain sans correc- Canadian Broadcasting Corporation. The language programs. The largest TV stu- metriques; 12 a 15 % supplementaires des teurs qui introduisent inevitablement huge complex of concrete, stone and glass dio is a four-camera auditorium seating nuits sont utilisables pour les observa- absorption et lumierediffusee. Com me dans sprawls over 25 acres on Dorchester Bou- 700 . tions spectroscopiques qui ne necessitent Ia configuration classique le champ sans levard East, just west of the Jacques Car- Six stations serving the metropolis and pas des conditions aussi stables. coma est faible. II est necessaire d'inserer tier Bridge. feeding the national networks operate out des correcteurs pour les observations exi- Guided tours of the Maison Radio-Canada of the Maison: French-language radio sta- geant un champ important. Dans la confi- are given mornings and afternoons seven tions CBF and CBF-FM; their English · Pour beaucoup d'observations, Ia carac- guration coudé, une série de miroirs di- days a week and evenings, week nights counterparts CBM and CBM-FM; French- teristique essenfielle d'un site reside dans rigent Ia lumiere vers I 'une des deux sal- only. Tours are given in French and En- language television station CBFT and En- Ia "qualité d'image" qui se mesure dans les coudé situees sous le telescope, où il glish and last about one hour. For reser- glish language television station CBMT. le cas des grands telescopes, par l'elar- est possible d'utiliser de grands spectro- vations call a day ahead if possible at Together with the shortwave service Ra- gissement du diametre apparent des étoi- graphes et autres instruments encombrants 285-2962. dio Canada international and the Northern les dû à Ia turbulence atmospherique. La Les miroirs plans de Ia combinaison cou- Visitors are also welcome to attend the Service, these stations broadcast a total of taping of certain TV and radio programs approximately 900 hours of programs a week mostly in French. For reservations for 250 of which air on television . Over two French programs phone 285-2690 for En- thirds of these broadcast are French-lan- glish programs 285-2600. ' guage productions. Convenient for tourists. the Maison is a Radio Canada international broadcast a- short taxi ride from downtown hotels. It round-the-clock in eleven languages is easy to get to by bus - take the 150 to five continents. Having earned a world- going east on Dorchester or take the Metro wide reputation for unbiased news reporting, and exit at the Beaudry station. R.C.I. r eceives thousands of letters a vear The spectacular 23-storey hexagonal of- from appreciative listeners. fice tower dominates the skyline of east The staff of 3,400 on third of the end Montreal. CBC 's national work force. includes head - TV and radio production takes place in quarters staff of the French Network and three vast underground levels. This enor- the offi cers of the Quebec Region of the mous subterranean production plant inclu- English Net wo rk. des radio and TV studios and their con- Visitors to the Maison are fi r st ta ken trol rooms; radio and TV Master "Con - to the Multimedia Room for an audio vi- trols, ten tele-cine and twenty videotape sual presentation on multiple scr eens. It chams; a record library with 220, 000 discs outlines the role of the CBC and a bilingual newsroom and a ga rage for mo- shows ma nv of the activities which visi- bile TV units. tors cannot see. Th e underground labyr inth hou ses a You can't miss it - it's the onlv six- de_sign department that conjures up every- sided building around. thing from a medieval castle to a space Maison Radio Canada is included in the ship. Its 8,000 seats and 60 ,000 props tour of Old Montreal, No 92 . Extra tickets Vue d'avion du site. Le télescope CFH est au premier plan. Derrière se trou- would fill an average-size department stor e. may be purchases at $8 each. See page 15 vent les telescopes de l'Université de Hawaii et du Royaume uni. Le sommet de The Maison' Costu me Department stocks of th e Final Programme for details . Mauna Kea est à gauche. Mauna Loa est à l'arriere plan . 17,000 costumes and 15,000 accessories and Reprinted with permission from creates 8000 original costumes in a year. PROMENADE, April 1978. THE PARIS OFFICE

OF by THEPATRICK WAYMAN IAU It's been talked about for a long time tance has been delayed for various rea- and now it's going to happen - the IAU sons. The era of a peripatetic Execu- is going to have a permanent 'seat' in tive Secretary seemed bound to end even- Paris. From September 1979 all corres- tually, even for the simple reason that pondence for the IAU Secretariat should IAU archives become less easily moved go to "The IAU Secretariat, Observatoire every time. The coming to retiring de Paris, 61 rue de l'Observatoire, 75140 age in 1979 of Arnost Jappel, the faithful Paris, France." servant of the Union as Executive Secre- tary since 1965 , produced the opportuni- ty. The decision to accept the invita- tion from 1979 onwards was taken in 1974, before I joined the Excutive Com- mittee, and I have considered my as possible General Secretary in the text of the Paris Office right from start.

We have been fortunate, through the work of Edith Muller, to secure the ser- vices of Mme Brigitte Manning , a person with some years of experience at l'Ob- servatoire and with a reputation for effi- cient handling of international correspon- dence. She commences her service with the IAU during September and I expect to be resident in Paris myself during most of October and November 1979. that , I expect to visit Paris fairly fre quently and to carry out little of my IAU work at my home institution in Ireland. For the future, proximity to Paris s to be demanded for General Secretaries, but practically all have been so situated in the past. Manv scientific unions headquarters in Paris and the headquar- ters of ICSU and UNESCO are there as well. Consultation with these organiza- . tions is therefore much easier and a de- finite evolution in IAU organization is rb possible. Herb Gursky and admirers look at the further mysteries of X-ray sources as revealed by the spectrographs of I. U. E., in the opening paper of yesterday's Joint Statue of Le Verrier in the forecourt of The actual office building has two rna Discussion on Ultra-violet Astronomy. This is the first 18-inch telescope in rooms, one above the other, a ground history to provide material for an entire Joint Discussion, and all within 18 months l'Observwtoire de Paris, floor storeroom and a cellar for storage Photo: PAW storage shelves will line many of th of its first light. Photo: Pierre Guzzo If you know the Rue de I'Observatoire walls for past and future archives. entrance of L'Observatoire de Paris, you spite of its prestigious position and may remember passing a statue of Le favourable location in a delighful Verrier. If so, you have also passed quartier, it does not have good view the new IAU Office. By real - estate from its windows, in general, but it i agents it might be described as a "self- a solidly-built structure with CONCENSUS? contained period bijou residence", and it charm. It is not so big that it will en Twenty years ago this month the first cation. This would make us more pessi was originally the former western gate courage empire-building, but its in paper appeared suggesting we look at the mistic of the successful outcome of ou lodge of l'Observatoire - hence the name dividualistic setting in historic surroun hydrogen line wavelength for intelligent search for life elswehere in the Le Pavillon ouest de 1'Observatoire. The dings is a great attraction. The Un signals from space. Since then many were it not for the fact that eastern gate lodge still serves its origi- is greatly indebted to the authorities searches of nearby and galaxies technology based on integrated nal purpose. the CNRS of France for their generou have been made and so far no signals now allows us to scan many frequencies The offer from Paris authorities of a provision of this building and to ou have been detected, but 20 years is a rapidly. permanent home for the IAU has been French colleagues for their efforts to brief time and these searches, as Philip The morning discussions centre on made several times, but making the of- wards finally achieving this long-conside Morrison said, are only a prelude. The number of technologically advaced ci fer definite and implementing its accep- red project of a major difference between then and now is zations currently present in the our much higher ability to gather data. and on the strategy for SETI through After this paper many other such special waves. I. Shklovsky was asked frequencies were discovered, such as the coming what the chance was of hydroxyl), ammonia lines, etc. and there's extraterrestrial intelligence. He no clear reason why the choice should that he thought it was higher than rest on any one of these for communi- of his coming to Montreal. He is here

(Left to right) P. Morrison, M. Papagiannis and I. Shldovsky at the Joint Ses- sion of Commissions 16, 40 and 44 on Strategies for Looking south-east from the centre of Montreal, the Maison Radio-Canada is shown Universe. with the Jacques Cartier Bridge spanning the St. Lawrence River in the background BULLETINS COMMISSION 41 COMMISSION 31 (HISTORY OF ASTRONOMY) COMMISSIONS 29 and 42 LOST BAGGAGE - Informal meeting on VV Cep, Friday, COMMISSION 41 (HISTORY OF ASTRO- Yest.erday, August 14, a late meeting of August 17 at 9.00 a.m. Room 2414. BAGAGES PERDUDS NOMY) will hold sessions on Thursday Commission 31 organizing committeewas held to prepare for the a dministrative COMMISSION 44 MEETING 16 August in Room B-2305. Commission has scheduled a meeting If you did not recieve your baggage on session of today. Lists of organizing arrival at Mirabel Airport, it has been committee, new members and consul- on Future Needs tor Space Astronomy on 15:00-15:30 Gérard de Vaucouleurs: Friday, August 17 Room 3325 . delivered to the CTCUM "Autocar" ter- Early History of Astrophotography (60 tants were prepared to be approved at minus at Central station (at tbe junction minutes) today's meeting by the members of the The meeting 1s made of 3 sessions Session I: International Space Program- of Lagauchetler e and University) near Q.E. J.A. Eddy: Recent progress in Astroar- commission. In addition, the August 15 Hotel. mormng meeting heard reports of the re- mes. This session will be devoted to a chaeology (30 minutes) description of present planned programmes For more information, please give your 16:00-17:30 S. McKenna- Lawlor: Astrono- presentatives to the BIH, CCDS and CCIR. name to the Information Desk at Pavillon The program of Commission 31 for to- in various organizations like NASA and nomical Observations in Medieval Irish ESA by Nancy Roman and E. Peytreman. 3200 rue Jean Brilliant. This does not apply Chronicles (15 minutes) morrow is as follows: (Room B-2305) for arrivals at Dorval. Session II: President Scientific Needs for 0. Gingerich: The plenum universe from at 10h00 together with commissions 4 Si vous n'avez pas encore reçu vos baga- 7, 8, 19 and 24 for the presentation and Space Astronomy presented by L. Gold- Aristotle to (45 minutes) berg. ges à l'arrivee à Mirabel, ceux-ci ont été followed by short papers by Chinese as- discu_ssion of the report prepared by the livrés au terminus CTCUM "Autocar" à workmg group on nutation followed by Session III: Potentialities for Space As- tronomers. tronomy of the new generation of Space la Gare Centrale (coin des rues Lagauche- Secretary: Dr. J.A. Eddy (USA) or Dr. progress report on the preparation of tière et University) près du Reine Elizabeth FK5 . Transportation Systems and Platforms. Owen Gingerich (USA) The meeting will be followed by the se- Pour plus de renseignements, veillez don- cond business meeting of the Commission. ner votre nom au bureau d'information au COM MI SSION l 9 - ROTATION OF THE EARTH The detailed programme of the meeting Pavillon 3200 rue Jean Prilliant. Ceci ne s'applique pas pour les arrives à Dorval. In the meetings of August 14, Com- been constant, but that the forced annual is posted on Commission 44 el. mission 19 (The Rotation of the Earth) motion has been variable. D. P.E.G. Pa- treated topics ranging from fossils to quet presented the results of analysis of TOUTES NOS EXC USE S radiointerferometry. Professor S.K.Run- the variations in UTZ-TAI by Dr. D. -ROOM 2405 corn delivered a talk on the geophysi- Djurovic. Dr. 0. Calarme discussed the Customers of la "Boutique du Con- Nous regrettons sincerement l'oubli de cist's point of view toward the rotation results from the EROLD (Earth Rotation grès" will have a chance to win a prize la parution de !'auteur sur l'artide de la of the Earth. He related recent studies from Lunar Distance) campaign to use to the value of $100.00 at a draw. You Place des Arts dans la publication no I. of the length of the day determined from laser ranging to the to determine will have as many chances to win as Son nom est Mireille Gagné. Toutes nos Devonian Coral fossils and nautiloid fos- Earth rotation parameters. Dr. J. Fon- you have number of coupons. You have excuses. sils to modern astronomical results. Dr. selow described the VLBI program of the one coupon for every purchase at the B. Guinot discussed the improvement ofthe Jet Propulsion Laboratory to determine "Boutique du Congrès". Bureau International de I 'Heure system of Earth orientation parameters. Together Les clients de la "Boutique du Congrès" Earth rotation parameters introduced in with the members of Commission 31, auront droit au tirage d'un prix d'une WATCH 1979. From a study of data obtained with the meeting of August 15 was held to valeur de $100.00. Vous avez autant de classical optical methods and from the discuss the future of Project MERIT chances de gagner que le nombre de THIS SPACE (2) satellite technique, Dr. William (Measurement of Earth Rotation by In- coupons en main. Vous recevez un cou- Markowitz reported that since 1962 the tercomparison of Techniques). pon pour chacun des achats faits à la motion of the rotational pole has "Boutique des Congrès". COMMISSION 34 INTERSTELLAR MATTER (I) Interpretation of extinction and polari- A Triangle zation observations (J. Mathis, Madison. AN D PLANETARY NEBULAE U.S.A.) (2) Amorphous grains (K.L. Day, Tucson Schedule of Meetings U.S.A.) Six 90 minute meetings have been scheduled as follows: (3) Laboratory Measurements on the 12 features of interstellar silicate grains Session Title Date Location (W. Kratchmer, Heidelberg). c&d Administrative: August 17 E-0325 (4) Formation mechanism and grain pro- Supernova Remnants perties, theory and experiment (B. Donn II a&b Planetary Nebulae: August 18 E-0325 Greenbelt ). Ionized Gas (5)Theory and laboratory analogue experi- III c&d Atomic Hydrogen: August 21 E-0325 ments on photoprocessing interstellar grain Interstellar Dust mantles, results and implications for inter- SESSION I - ADMINISTRATIVE ( G.B. tary nebulae (S. Pottasch, Haute Pro- stellar molecule formation (J.M. Green- 400 B C The triangle is hypothesized FIELD, CAMBRIDGE, U.S.A., vence) berg, Leiden ). to be the fundamental unit out of which Chairperson August 17, 90 minutes (8) Dust in planetary nebulae (S. Kwok, (6)0xide grains (W.W. Duley, Toronto. the Univers is built. ottawa) This time will be devoted to a business (9) Proto-planetary nebulae (C. Purton, (Suite de la page 1) meeting. Among the matters to be discus- Toronto) verte de la predissociation inverse dans sables des spectres cometa1res ont pu sed are the qualifications for membership 'atmosphere des etoiles variables à lon- être decouverts. in Commission 34, recent actions on the SESSION II IONIZED GAS (M. PEIMBERT gues périodes. Faite à la suite de tra- Le spectre des queues des cometes sont membership list, and final approval of MEXICO CITY Chairperson August 18 2 j3 vaux de laboratoire, cette decouverte il- riches en lignes dues aux ions molecu- membership for the next Triennium. If b 60 minutes ustre particulierement bien 1'application laires. L 'identification de nom bred' entre you have other items for the agenda, plea- (1) Emission line survey of the Milky des études experimentales au domaine as- eux constitue un des plus remarquable se leave a note in Field's box at the Ge- Way (T. Gull, Greenbelt) ronomique. chapitre des travaux du Dr. Herzberg et neral Assembly. (2) Faint filaments of ionized gas (R . de ses collaborateurs. On se rappelle session i - SUPERNOVA REMNANTS Reynolds, Madison) PLANETES que la derniere identification, celle que (L.HIGGS, OTTAWA, CANADA Chairper- (3) ultraviolet observations of the Orion l'ion moleculaire de l'eau H2O plus, ré- son August 1'1 90 minutes (M. Perinotto, Florence) Ce que nons savons de 1'atmosphere sulte de !'analyse des observations de la (I) Theory of supernova remnants (L. (4)0bservations of galactic HII regions (M . des planetes, de leurs compositions et des fameuse comète Kohoutek. Cowie, Princeton) Peimbert, Mexico City) processus moleculaires qui s 'y produi- (2) HI in supernova remnants (L.Higgs, (5) Comments on extragalactic HII regions sent a aussi été très largement acquis NUAGES INTERSTELLAIRES ottawa) (S. Collin-Souffrin, Paris) grâce à l'etude, en laboratoire, des (3) High-velocity HI in the galactic plane (6) A mechanism for variability of in- spectres de !'oxygene, de l'hydrogene, Enfin l'histoire du milieu interstellaire (V. Radhakrishnan, Bangalore) terstellar masers (C. Montes, Nice) du methane et d'autres molecules. Les et de ses nuages de gaz et de poussieres (4) Acceleration of cosmic rays by su- (7) Radio infrared studies of star-forma- travaux du professeur Herzberg et de ses en est une de spectres particulierement pernova-driven shock waves (R. Bland- tion regions (E. Becklin Hawaii) collegues touchent done tant à la chimie enigmatique. Le dechiffrage de ces spec- ford, Pasadena). SESSION III ATOMIC HYDROGEN moleculaire qu'à l'astrophysique et à tres et !'identification des molecules qui (5) Optical studies of supernova rem- (H . VAN WORDEN, LEIDEN Chairperson l'étude des écosystèmes planetaires. les produisent constituent une des plus nants ( S. van den Bergh, Victoria.) August 21 c 90 minutes palpitantes enigmes de l'astrophysique du (6) X-ray observations of supernova rem- (l) structure of the interstellar medium COMETES XX siecle: c' est encore grâce aux recher- nants (S . Murray, Cambridge, U.S .A.) near the galactic center (W.B. Burton, ches spectroscopiques de laboratoire (7) Analysis of interstellar lines in high Minneapolis) Mais c'est dans !'analyse spectroscopi- qu'on a peu à peu réussi à lever le voile dispersion IUE spectra of 30 Doradus (K. (2) Gas in the solar vicinity (A . Dupree, que des cometes que ces travaux de la- sur cette enigme. Très recemment ces de Boer, Madison). Cambridge U.S.A .) boratoire, couples aux observations as- recherches ont perm is de predire I 'exis- SESSION II -PLANETARY NEBULAE (3) Observations and interpretation of neu- tronorniques, ont produit certains de leurs tence insoupçonnée d'ions et de molecules (Y. TERZIAN, ITHACA, U.S.A. Chairper- tral hydrogen absorption (E. E. Sal peter, fruits les plus importants. geantes dans l'espace interstellaire, eta son August 18 - 120 minutes a & 1/3 b Y. Terzian and J. Dickey. Cornell) Les têtes cometaires montrent des suggéré les moyens de les decouvrir par (I) General review of planetary nebulae (4) Cloud structure and temperature of spectres caracteristiques de plusieurs ra- !'observation astronomique. Ces predic- (Y. Terzian, Ithaca) atomic hydrogen from brightness fluctua- dicaux libres. Pendant plus d'un siècle, tions ont été brillamment confirmees par (2) General review of planetary nebulae tions in the 21 em line (U. Mebold . Bonn) un groupe de raies spectrales à 4050A les decouvertes, grãce aux observations II (G.S . Khromov, Moscow) (5) Synthesis observations of galactic Hi est demeure une enigme. defiant toute radio - astronomiques, de nombreuses (3) The birth rate of planetary nebulae (U.J. Schwarz, ) identification. Ce mystère aiguillonna de molecules organiques dans I 'espace. and their total number in the galaxy (V. (6) Neutral hydrogen high velocity clouds nombreuses études en spectroscopie ex- Le Dr. Herzberg termina sa conference Weidemann , Kiel) (E. E. Sal peter and Y. Terzian Cornell) perimentale qui reussirent. enfin, à iden- en mentionnant plusieurs exemples d'é- (4) Planetary nebulae in other galaxies (7) Neutral gas in elliptical galaxies (g. tifier le radical libre C3 comme source tudes expérimentales qui, bien qu 'elles (H. Ford, Los Angeles). R. Knapp, Pasadena) de ce groupe. C'est aussi grâce aux n 'aient pas encore amené de découvertes (5) Optical spectra of planetary nebulae session III- INTERSTELLAR DUST données des laboratoires aue 1es diffé- astronorniques , sont suscentibles de bien- (I' Aller, Los Angeles) (B. DONN, GREENBELT, U.S.A. Chair- rents mécanismes d'excitatiou respon- tôt le fa ire. (6) Far. ultraviolet observations of plane- person August 21. 90 minutes 1979 IAU Montreal UAI 1979

August 17 METEOR Août 17 Number 4 Canada Numero 4

Office:- Room No . 1265 Editor :- Michael W. Ovenden Téléphone 343-5889

THE WINDS OF CHANGE T E OINT DISCUSSION ON STELLAR

At first stars were discussed and the impor- tance of X-ray observations was stressed. Dr. Kundu thinks that the other end of the spectrum will prove equally profitable. He has already looked at 20 single stars with the VLA and believes he has detected the corona of 6 of them, 3 more are probable detections. Publication of these results await confirmation of the dectec- tions. Tbe discussion then movedon to the sun. the only star for which we can get a really close look. Dr. Zirker presented a paper The solar corona taken by George at the solar eclipse of February 26, 19'19. Mr. Ball is a member of the Victoria on the large scale structure of the corona. Centre of the Royal Astronomical Society of Canada According to the recent view of the mat- ter coronal holes which dominate during solar minimum periods appear to correlate closely with the recurrence of high speed winds which IN SPACE disturb the magnetic field of the earth. It is thought that the coronal hole is the birth of a high ve- locity wind stream along a tube of open magnetic TO PINPOINT THE TARS fields lines. He concluded his address by saying At a joint discussion of Commissions that before Skylab we thought we understood 24 , 33 and several others on Thursday the slow wind of the Sun. Now we think that we mo rning it became clear that a whole understand the high wind but are not so sure new era of surveying the stars may soon about the slow wind. be upon us. Dr. Hog, from Copenhagen University Observatory, described the A participant suggested that one shouldattempt proposed European Space astrometry sa- to look at X-ray bot spots in stars wbicb rotate tellite, Hipparcos, which is expected to be approved next year for launch in with the rotational velocity of the star. The ratio- 1984. The instrument will be able to nale: if energy is not dissipated by stellar wind it measure the positions, annual proper mo- should show up elsewhere. Then the discussion tions and parallaxes of 100,000 stars to moved on to high resolution Views of the solar an accuracy of .002 arc seconds. bromospbere and corona. Spikes wbicb could This wealth of data will mean a new life be the base of loops extending far above the for astrometry and also for many astro- surface are seen in the transition region. They nomical investigations based on astrome- appear on time scales of 20 seconds and can tric dat a, eg. the cosmic distance scale. the lu minosity calibration of stars and last for hundreds of seconds. The participants the study of stars in the solar neighbour - we re shown a movie made by assembling 20 hood . Dr . Jefferys described how the together which illustrated well the stochastic NASA Space Telescope, to be launched nature of fine structur e variation of the solar now in 1983, is also capable of astro- surface. Since the loops are not yet detected met r ic measurements whi ch will be com - far from the surface the question on whether plementary to those of Hipparcos since it the accelerate or decelerate is still not resolved will have a narrow field of view but will be able to study much fa inter stars. Dr. Hogg describes Hipparcos Photo: Pierre Guzzo EDITORIAL ECLIP BLINDNESS This Assembly is not the first session in 1979 when tryside, leaving a rainbow-tinted horizon, it seems as though campaign led intelligent people to believe that during Canada played host to an international gathering of astro- you are inside a small, dark and private celestial sphere, an eclipse the Sun was the source of malign radiation. The nomers. On February 26, we were favoured with that most lighted only by the pearl-white corona. It is over all query "will my son be al right if he keeps his head in a spectacular of cosmic spectacles, a total eclipse of the too soon. paper bag during the eclipse?", was unfortunately, not a- Sun . Totality swept into the Pacific north west of the U.S.A. The more zoologically-minded may watch. for snakes typical. near dawn, crossed the forty-ninth parallel into Mani- or listen for the sound of cock-crow at the day's second And have we really retreated so far from reality that toba (where totality was longest, and most astronomers dawning. The media reports - wherever did they get in- we see no difference between experiencing nature, and ex- gathered) to lose itself in the wilds of Hudson Bay. formation? - and the response to them are a suitable study periencing its flickering substitute on a fluorescent screen? The weather was unpromising, but along much of the for a psychologist. Prior to the eclipse, the media were track the clouds broke up, and most observers were lucky, flooded with dire warnings of the dangers of 'eclipse blind- although one site might have been clear while another a ness'. Schools were cancelled to prevent children from BOUTIQUE DU CONGRES few miles away completely clouded out. In the west, the watching the eclipse, and parents were warned to keep There is a wide choice of Quebec handicrafts such early hours of the day were unusually crowded with coaches their children indolrs and watch the eclipse on television. as follows : Eskimo art, paintings and sculptures, and cars, moving in opposite directions but all seeking No doubt there have been genuine cases of eclipse enamelled copper, pewter, tapestry, weaving, doll col- those elusive patches of blue sky. blindness in people whose optical reflexes are sluggish lection, handbags, pottery, plexiglass, silk scarves, The first experience of a total solar eclipse is unfor- and any warning against gazing at the uneclipsed. Sun for and silver and gold jewellery. gettable. As the eclipse shadow strides across the coun- any length of time is always appropriate. But the scare SPACE COM AG After little more than a t rating the power of the IUE gher-r edshift ellipticals year of regular operation , in seeing grain formation from ·ground-bas ed data. Ul- the JUE satellite provided grow the 2200A dip and in rich discussed Seyfert Gala- almost all the material for providing clear evidence on xies and Boksenberg dealt Joint Di scus sion No. 4, held the difference between types with OSO s and BL Lac ob- on Wednesday. This cir- of novae by measuring bolo- jects. Evid ence points to- cumstance allowed the au - met ric lum inisities directly. wards the broad line emis- dience at least to become The WZ Sge outburst wa s sion originating in a disk, accustomed to th e data for - clearly a disk phenomenon whil e th e suprisingly low ly mat, even it the astrono mi- with co nstant temperature alpha to H beta intensity ra- cal topics did flash by at through decline, while Nova tios may possibly be ex- breathtaking speed. Start- Cyg 1978 was a classical pl ained by a higher density of ing on a topic of high promi- thermonuclear runaway with matter in this region se, Gu rsky summarized UV constant luminosit y and in- than previ ously supposed. spectroscopy of X-ray sour- creasing temperature. BL Lac objects remain ces. The UV data of these On e of the quirks of in- line-free as far as IUE can objects, however, do not ter stellar extinction is that see, and the absence of Ly match their high energy out- Magellanic cloud stars can alpha absorption seem to put in obvious information be observed more easily in point to the real absen- and is clear that careful !he UV than many nearby ce of gas in them. 3C 273 work needs to be done to galactic supergiants. A continues to provide sur- interpret fully the evidence highlight of Grewing's sum- prises, this time in the form for X-ray ionisation holes, mary of the interstellar me- of unshifted absorptions a- UV continuum excesses and dium was the discovery of gain from our own galaxy and deficiencies, and hot objects interstellar absorptions by with a blue light excess over in globular clusters. Plane- Savage indicating the pre- its power law spectrum tary nebulae (Seaton) conti- sence of hot halos round the which may arisefromastel- nue to be the atomic phy- galaxy and the LMC . The lar population. The galactic sicists' paradise at short galactic lines are thought to halo extent provides a tan- wavelengths, with the bonus be formed as far as 8 kpc talizing possible explanation that the central stellar winds from the plane. of multiple Ly absorptions can also be seen in some. The final session was in high redshift QSO's bv The white dwarfs and sub- perhaps the most specta- intervening galaxies. All dwarfs, summarized by cular. Here Bertola dealt these exciting possibilities Greenstein, are much as ex- with UV observations of ga- need to be checked out on pected, which is certainly laxies. In these, a far UV the basis of a long term ob- satisfying, if perhaps a continuum turn-up is seen at serving effort on IUE , ac- little disappointing. Dupree wavelengths which vary ac- cording to Longair who ex- and Lecrone produced a bo- cording to the relative po- pertly summed up the ses- Part of an IUE image showing the high dispersion long wavelength (180-320 NM ) tanist's paradise of emis- pul-ations of hot stars. The sion. The present status of sion and absorption lines in spectrum of the slow nova RR Tel. This spectrum plus companion short-wave data UV absorption lines also in- the spacecraft holds out the shows all emission lines. late-type and peculiar stars, dicate this by corresponding expectation that much more which should provide some- to lines typical of stars of fundamental research re- one with years of solid work . different spectral types in mains within its expected li- Sparks summarized re- different galaxies. The fetime. sults from three novae and spectrum of M87 does not Quote of the day: "Now PALOMAR SKY recurrent novae, demons- throw any light on the cen- that we understand all about tral source yet, but does look BL Lac objects, I'll go on PAPER EDITION ON MYLAR FILM? very like the spectra of hi- to ." The California Institute of Technology There have been some inquiries concer- is pleased to announce that plans are ning an edition of the National Geographic being made to produce the sixth paper Society Palomar Observatory Sky Sur- edition of the National Geographic Society vey on mylar film . We are therefore at- Palomar Observatory Sky Survey. tempting to determine the extent of such Production is scheduled to begin in Octo- interest. As film processing and other ber 1980, Estimates based on past expe- needed equipment is quite expensive, a rience and projected costs for labor and fair number of orders will be needed material suggest that the cost will not to justify this project. exceed $4,500 per set f.o .b. Pasadena. It is impossible to state a fixed price The first seven sections will be invoi- in advance, but it is expected that a set ced at provisional rate with the final might cost in the range of $12,000 - invoice being adjusted to the actual total $15,000. cost of production. If your are interested in a mylar copy Orders will be accepted until September of the Sky Atlas, to be produced in late 30. 1980 . Since only the number of copies 1981 , please notify: will be produced for which orders have J.W. Minges been received by that date, no additional Director of Business Services orders can be accepted thereafter. California In stitute of Technology Orders should be addressed to: 1201 E. California Blvd. J .W. Minges Pasadena, CA 9il25 Director of Business Services U.S.A. California Institute of Technology. 1201 E. California Blvd Pasadena, CA 9112 5 U.S.A. Descriptions and details of these five-outings are available from the Venturex desk in the Secretariat, 2nd floor of Pavillon 3200 We apologize for the unavoidable changes from the Preliminary Programme: P2 now goes to Lac des Sables in the Laurentians instead of to Mount Orford, and the Finance Committee and Na- tional Representatives on P8 now go to Sun Valley in the Lau- rentians. Please note that Pl (Historical Forts) leaves earlier than the rest. The piano recital on P3 (Maison Trestler) will be played by Christian Parent, professor of music at the Université de Montréal and will include pieces of Québécois, European, classical, modern and contemporary origin.

Man and His World Maison Tressler

ASTRONOMER OF THE DAY A PHOTOMETRIC ATLAS OF THE SPECT RUM OF PROCYON by R. & R. Griffin HELENDemandez à n'importe leqS.uel astronome HOGG canadien quid 'entre eux The authors are peased to announce the est le mieux connu au Canada et l'on vous répondra sans hesiter: vailability at their new publication, which is Hel en Hogg . Madame Ho gg est professeur Emeritus au depar- enerally similar to the " Arcturus Atlas". One tement d'astronomie de l'Universite de Toronto. Elle a commence f the authors has a copy here on display each à etudier les etoiles variables dans les amas globulaires à ay near the cafeteria. The Procyon Atlas is Harvard il y a maintenant 52 ans. Elle possede des milliers de eing distributed at cost price ( 30). plaques photographiques representant plus de 50 amas globu- Note that the Arcturus Atlas, published in 1968 laires. La majorite des plaques plus anciennes furent exposees an still be ordered to (Price 12). au foyer Newton du telescope de 74 pouces. de l'observatoire David Dunlap à Richmond Hill en hanlieu de Toronto. Le ciel é tant maintenant trop birllant à Toronto, des assistants de re- cherche prennent pour Mme Hogg des photos des amas de l'hémis- PLANETARIUM DOW phère sud avec le telescope de 24 pouces au Chili. Mme Hogg écrit La Planétarium Dow de Ia Ville de Montreal aussi une rubrique hebdomadaire sur l 'astronomie dans le Toronto souhaite la plus cordiale bienvenue à tous les star depuis 28 ans. Elle a ainsi succdeé à son mari qui ecrivait participants à la dix-septieme assemblee gé- cette colonne depuis 10 ans. Après Montreal, Mme Hogg se ren- nerale de I 'Union Astronomique Internatio- dra à Victoria où elle presentera en collaboration avec Mme nale et les invite à assister aux representa- Amelia Wehlau ses derniers resultats sur NGC 6934. Ces a- tions de son sepctacle regulier intitule "Qui mas comportent 50 etoiles RR Lyrae et une variable irreguliere: a tué les Dinosaures" et au Concert cosmi- Mme Hogg a encore du pain sur Ia planche. que au Laser présenté par ''Eye See the Light Shox Inc.'' Guest (admission free, 2 persons, to "End of the Dinosaurs" Name of IAU Participant Registration No ...... Shows are on 1979 August 21 , 22 and 23: with English lecture at 20hl5 and French lecture at 21 h 30 . Please present this clipping to the cashier with your name badge. Welcome

WATCH THIS SP ACE (3

A Hemi-triangle

1800 A.D. The demi-triangle and the hemi-triangle are discovered in the labora- FAR OUT? Photo: Pierre Guzzo. tory. They are thought to be ind1v1sib e Tbe start of the Joint session on Radio Studies of Galaxies, Radioga laxies and Quasars. BULLETINS

SUBRAHMANYAN CHANDRASEKHAR COMMISSIONS 10, 40, 42 D. Crampton Dr Chandrasekhar hardly needs any in - J.B. Hutchings traduction to the world's astronomers and 44 - JOINT MEETING ON (Canada) since for many years everyone who ever "CLOSE BINARIES AND Periodic variations of emission and ab- submitted a paper to the Astrophysical sorption H alpha and H beta Jines (P 13: Journal corresponded with him. He was STELLAR ACTIVITY" (10m). Managing Editor of that Journal from 1952 J. Kemp to i97L Despite this time-consuming ser- August 18 , 9.00 a.m. F . 2245. (U.S.A.) vice to astronomy, he still found time D.L. Hall: Introduction Photoelectric observations regarding to be a prolific contributor of research B.S.BOPP: BY Dra and RS CVn stars: the 13 days period (presented by G. W' Col- papers himself. His contributions to the the discoveries of classical photometry lins II, U.S .A.) (5m) to the theory of radiative transfer, and and spectroscopy MODELS of the structure of stars, are wel.l-know Y. KONDO: Recent space UV observations G.W. ,II and he has written books on these topics. J. SWANK: X-Ray observations of stel- U.S.A.) Dr. Chandrasekhar has joined that select Dr. S. Chandrasekhar lar coronae and winds . An X-ray binary model for SS 433 re- group of scientists who have a physical bership in the U.S . .National Academy of R.J. HJELLMING: Radio astronomical as- cently appeared in "Nature" (lOrn). phenomenon named after them. In these Sciences and to Fellowship in the Royal pects. I.S. Shklovsky days when neutron stars and holes Society of London. He received the I.S. McLEAN: Emission line polarimetry (U.S.S.R.) are all the rage, everyone has heard of Gold Medal of the Astronomical Society as a probe of stellar winds Jets produced by a very fast spinning the Chandrasekhar limit for the masses of the Pacific in 1952 and the Gold Medal J.L.LINSKY: On the difference at chro- magnetized neutron star in a postsuper- of white dwarves. of the Royal Astronomical Society in 1953. mospheric levels between RS CVn-type nova binary system (!Om). Because 1979 is the hundredth anniver- binaries, active and quiet chromosphere M. Milgrom Dr. Chandraskhar was born in India, and sary of the birth of Einstein, single stars, and active and quiet regions (Israel) studied first at the Presidency College, the Executive Committee of the I.A. U. in the Sun. Thomson scattering model for the se- Madras and then at Trinity College Cam- has specially invited Dr. Chandrasekhar J .L. Modisette: Transient mass ejection condary branches (5m). bridge England. Il has lived and worked, a distinguished theoretical astronomer, to due to local heating at stellar surfaces G. Newsom in the United States of America since give a discourse to the role of the theory There will be time for scientific discus- (U.S.A.) 1937, spending all that time at the Yerkes of general relativity in astronomy. His sions in the latter part of the business Observations and model (5m). Observatory and the University of Chica- sub-title "Retrospect and Prospect" pro meeting of Commission 42 on August 21. V. Icke go . He was appointed Morton D. Hull mised not only an appreciation of the COMMISSION N0.27 (.K.) Distinguished Service Professor in the past sixty four years, but offers a tanta- Clouds ejected by a disk black hole University of Chicago in 1952. He has lizing glimpse of what may yet be to come, A meeting of the Working Group on system (lOrn, movie) received many honours from his collea- from one who is perhaps uniquely qualified Flare Stars will be held on Friday Au- ges and has been elected both to mem to guess. gust 17 at 16 .00 hours in Room 3290. GENERAL DISCUSSION It is planned that a number of speakers will deliver short presentations on pros- ! For further scientific communication COMMISSION 31 pects for optical and non-optical observa- please contact Dr. A Mammano (Italy) tions of flare stars. All interested are IAU Box 2588 . AT 14:00- NEW EXPERIMENTS AT 15:00 - WORLD - WIDE CLOCK welcome COMPARISON M.N.R.A.S. Clocks in relativity: a general sur- ~OMMISSIONS 29, 40, 42, 48 vey (C .O. Alley).- Future Experiments with The world-wide comparisons: the Far Anyone interested in acquiring oart of Spacelab (starker). -Two-way time trans- East situation. Problems and solutions Informal meeting on SS433. W. W. Campbell's collection of Monthly No- fer via Hermes satellite between NRC/ (S. Iljima). - The future of the world- At suggestion by Prof. I.S. Shklovsky tices of the Royal Astronpmical Society, NBS (C . C. Costain). - Two-waytimetrans- wide synchromzahon (S. Leschiutta). - and other interested people, the proposed 'please contact K.G. Kron 4349 . Volumes fer via Symphonie satellite between NRC / High precision clock compansons by round table on Observations and Interpre- 76 through 113 are available. LPTF (Rutman) - The CENSAR TDMA means VLBI measurements (Klepczynski). tations of SS433 will be held on Satur- experiment (P. Nuspl NRC). Time dissemmhon capability of the day morning, August 18 , from 9.00 to PHOTOS-SOUVENIRS G.P.S. (G. Windler). The LASSO expe- 11.15 room 3260. riment (ESA) . Short communications on the following Anyone wishing to have a photo-souvenir topics are expected: of the XV IIth General Assembly are asked to go to the 2nd floor of Pavillon Jean- RADIO OBSERVATIONS Brillant. They will be available starting SOCIETE ASTRONOMIQUE DE MONTREAL (W50 SS 433) Thursday from the photographer Pierre STARNIGHT SOIREE POPULAIRE Guzzo , the official representative for A I 'occasion du Congrès de !'Union P.A. Feldmann the IAU meeting. Les personnes interes- On the occasion of the general conven- Astronomique International, La Société (Canada 0493) sées sont priees de se presenter tion of the International Astronomical U- d 'Astronomie de Montreal est heureuse de Position and intensity variation at short au comptoir de photos-souvenirs du pho- nion, la Société d' Astronomie de Mont- se joindre à tous les astronomes ama- wave lengths (5 min.) tographe Pierre Guzzo. Celles-ci seront réal, is very happy to join all the ama- teurs pour souhaiter Ia bien venue a ux con- K.W . Weiler disponibles jeud, le 16 août. teur astronomers to wish a hearty wel- gressistes. (W. Germany) come to the congressmen and women. Comme nous tiendrons notre Soirée Crab-like structure in W 50 (5m) COMMISSIONS 4-19-31 As we will be holding our annual Populaire d'astronomie le 18 août 1979, R. Shilizzi starnight on August 18, 1979, at the Bo- au Jardin Botanique, il nous est des plus ( tanical Garden, we are particularly plea- agreable d'inviter tous les congressistes VLBI at 6 em with Westerborck, Ef- Joint meetings of Commission 4, 19, sed to invite all the congress people to qui veulent nous rendre visite à cette felsberg and Ondala telescopes (5m). 31 will take place on Monday at 14.00 attend this event. occasion. B. Geldzahler and 16 :00 at room B-2305 (instead of For any further information, please Pour de plus amples informations, (Bonn & USA) room 3285) the topics will be universal phone to La Société d' Astronomie de Mont- veuillez communiquer avec le secreta- VLBI detailing structure at a few mil- and dynamical time. réal, at 254-1224. riat de Ia Société d' Astronomie de Mont- hares having a so-called jet (lOrn). réal, téléphone: 254-1224. W.M. Goss (Netherlands) HI absorption profile with Westerborck 33 YuN.Parijskij August 15 , 1979 (Morning) fication of stellar orbits in 2-dimensional (Crimea) Multi frequency simultaneous Galactic Dynamics and 3-dimensional systems and their use monitoring and the resolution of the so- called jet, with the 600 mt. telescope Scientific sessions with seven taiks in building models of stellar systems. Do you sant a place to discuss papers and one brief report . Speakers were A. P.O. Vandervoort, ''Resonance Phenome- OPTICAL B. Zealey. with your friends? Kalnajs, "Bar Models of Disks" - a re- ne in the Dynamics of Spiral and Bar- There is a bar for your convenience view of his recent work on models of red Galaxies". Two specific points which (U.K.) Discovery of optical counterpart of SNR open all day at the Bistro on the lst fiat stellar systems with a weak bar. apply to modeling of stellar systems floor from 10.00 a.m. to 6.00 p.m. A. Toomre, "What Simplifies the Spi- were emphasized, (a) proper treatment of (?) W50 : Two arcs 10' extent , separated rals?" - model calculations (done with resonnant stellar orbits requires a nonli-; by 70' and centered on SS433 (5m). T. Zang) show that even a weak dis- near theory and (b) even when resonart B. Margon MONTREAL NIGHTLIFE TOO turbance in a rotating disk with a cons- stellar motions do not play a role, re- R. Stone (U .S;.A.) tant rotational velocity can be greatly sonance regions play a dynamical role DULL FOR ASTRONOMERS? amplified to form a strong 2-armed trai- which requires special consideration. Recent observations of the moving fea- ling spiral pattern. The driving mecha- C. C. Lin , " Progress in Density - Wa- tures (lOrn). The midnight bus carrie home only nism is basically the galactic differen- ve Theory" - "Density Wave Theory is A. Mammano three dispirited astronomers the other tial rotation. in a very healthy state of development". (Italy) night. Where are all the rest? In their R.H. Miller, "Numerical Simulations The current theorv was reviewed with IR Observations and multiple branches rooms preparing papers for tomorrow? of Galaxies" - preliminary r esults from consideration given to com pari son with IN THE (1 & z) diagram (!Om). Bus timetable: A free bus service leaves N-body models which simulate both stel- observations. The emphasis of further B. Cosmovici every 15 minutes between 22 .00 and 24 .00 lar and gaseous components . These mo- work should be placed towards develop- F. StarfeUa frorri St-Denis/Dorchester. passing Queen dels display a' 'bewildering variety' ' of dy - ment of non-linear spiral density-wave (Italy) Elizabeth and Guy and returning to the namical forms: apparently the final forms theory. Profile changes of 01 8446 emitted in residences (Not Saturday or Sunday). a HI region (2m). of real galaxies are affected by the for- P. Schwar z. ''Gas Flow in Galactic The sign "SPECIAL " wil be on the mative conditions. G. Contopoulos. "In- Bars", a brief repor1 on related results C. Firmani bus , St-Denis. by theway. is a piece of tegrals of Stellar Motion and The1r Di- (Mexico) old , full of cafés and restaurants. from N-body experiments. Optical Spectra (3m). sappearance", a discussion of the classi- Gharles J. Peterson 1979 IAU Montréal UAI 1979

August 18 METEORE Août 18 Number 5 Canada Numero 5

Office:- Room No . 1265 Editor :- Michael W . Ovenden Téléphone 3 43-5889 ? Dr. Fred ChaffeeGRAVITATIONAL of the Smithsonian Institution's Mount Hopkin 's Observatory, on and taxes current theories of quasarLENS formation and evolution. behalf ofagroupincludingCarswell, Carleton, Davis, Walsh and Weymann , presented More of this next Wednesday in Commission 40. beautiful spectra from the MMT of the two objects which from the "Twin " 0957 + 561 A, B. Cross-correlation analyses of the strikingly similar spectra showed that their absorption line redshifts are identical to a very high accuracy (7 ± 15 kms - 1). These two quasars were discovered early this year and exhibit such nerly identical caracteristics that it has been proposed that the obj ect is actually onl y a single quasar whose image has been split int o two by a massive object betw een the earth and the quasar, a so-called gravitational lens . Thu s the " twins " may be our first detection of the gravitational lens effect proposed bv Einstein in the 1930 S. This theor y pr edicts that the twoo bj ecfs should have the same apparent bright- ness and separation at all wavelegths . Subsequent observations at radio wave- lengths , of whi ch an exemple was gi ven by Burke in the meeting , also show two point images of nea rly identical bright ness. Even the 67 X- ray photons caught by the Einstein Observatory are consistent with this. If the quasar varies in brightness (as it apparently does) the gravitational lens hypothesis predicts a phase lag of perhaps six month s between the observed varia- tion of the two objects. Everyone is eagerly avaiting the results of long term . monitoring of the two obj ects . Even if the object is actua lly two distinct quasars, their existence is very puzzling 0957+56 1 5GHz

The twin quasar (Palomar Sky Survey, E-print).

RESUME DE CONFERENCE SOLONNELLE LE ROLE DE LA RELATIVITE ENERALE EN ASTRONOMIE ETROSPECTIVES ET PROSPECTIVE$ Cette conference solennelle était nne revue du rôle de la théorie de la relativite générale en astronomie, une retrospective des succes d'hier et une prospective des developpements à venir. Derriere no us se trouvent maintenant la première con- 5 GHz map of the twin quasar made with the 5 km radiotelescope at Cambridge. firmation de deviations non-triviales de la theorie de Newton, telles que predites The crosses mark the positions of the optiacl QSOs. par la théorie générale de la relativite; Jes modeles cosmologiques obtenus sous les ·hypothèses d'homogénéité et d'isotropie, et l'impact des théorêmes de singu- larite; ainsi que l'étude des problemes relies à l'effondrement gravitationnel dans le contexte specifique des solutions de Schwarzschild et de Kerr - qui fournit nne representation exacte des trous noirs, que la nature produit, est comparable GEE WHIZZ ...... par son importance, à la decouverte des particul es elementaires en physique. Astronomers have geen given a new toy - the unique object SS 433. This amazmg Quant à l 'aveni r . Chandrasekhar affirme qu e le vrai rôle de la r elativite générale system~ has something fo r everyone: a superonova remnant, a van able point source sera d'offrir à notre co mprehension et à nos recherches un cadr e comceptuel in wavelengths from X-ray to radio, VLBI radio structures, relativsitc beams si solide qu'on pourra l'incor porer d'égal à égal avec tou s les autres phénomènes of . matter ·binary or bital mo tion and a sp.ectrum crammed with we1red and uni- observatiles dans notre interpretation de la nature. Il cite en exemple le théo- dentified lines. Bruce Mo rgan, 'the pr imary perpetrator of his object, reviewed · rême de Friedman voulant que tout objet en rotation soit instable da ns le contexte its properties in commission 48 yesterday and this morning observer and theore- de la relativité générale en vertu même de la reaction-radiation. ticians will gather to swap information and arguments . OMMISIONS 29 , 36, 44 OMMISSION 21 "LIGHT OF THE NIGHT SKY" The first scientific session (August 16) was mainly devoted to a presentation of the " Zodiacal Light - Background Starlight" experiment of the international solar polar mission (out-of-ecliptic) by Profs. R.H. Giese (Bochum, FRG , Prin- X-R A YS, UV , VISIBLE, cipal Investigator) and J.L. Weinberg (Albany, N.Y ., Co-Principal Investigator). Richard Giese explained the fascinating geometry of the spacecraft trajectory and the viewing directions. The photopolarimeter will scan and map the sky giving zodiacal light and background starlight, - or pure background starlight IR AN D RADIO SPECTRA when the probe is a 2 AU or more away of the ecliptic plane. Detection of the in- terstellar dust wind infiowing the solar system is expected to be possible, against a sufficiently low zodiacal light component in these far regions. Jerry Weinberg presented the prospects for a detailed background starlight TOGE ER EQUAL MASS mapping from ISPM . He also showed, as presently available, results of the back- ground starlight studies by space astronomy laboratory, Albany, N.Y. aboard pio- neer 10 and 11, a splendid isophotal map series of transparencies fitting a few LOS FROM STARS sheets of a Becvar' atlas

y nne B. Underhill A brief summary of the Activities of Commission 28 meeting, afternoon sessions, Two joint discussions (Nos. 4 and 7) Thursday, 16 August 1979. ave been keeping members of commis- At the 1976 IAU , Commission 28 elected to restrict new membership to those ions 10, 12, 29, 35 , 36 and 44 very busy. who had been members of the IAU for at least three years. This year the member- ot only have there been presentations ship voted to rescind this action and admit without delay to Commission 28 new f exciting new observations of winds members of the IAU. For other administrative matters, a motion to require au - rom stars of all types from M to O thors to include the appropriate factor of h (defined as the Hubble Constant H/100) nd Wolf-Rayet, but also of stimulating in published results on galaxies was rejected by the membership. James wray ut conflicting observations about the pre- discussed his work on color photography of galaxies, a technique which promises ence of variable, hot , highly ionized re- to have significant influence on color and population studies in galactic systems. ions in the outer atmospheres of stars. Eventually it is to be hoped that this work will be published in atlas form . Com- n the sun such regions are called the mission 28 voted to lend its support to obtain NSF funding for this publication. hromosphere, the transition layer and Dr. Yahil discussed his work with Drs. Sandage and Tarnmann on the use of he corona; much information is now the local structure and kinematics of the Universe ot determine the deceleration vailable about their detailed appearance parameter. Their results indicate an open Universe and imply that most mass is nd how they may be excited. Do stars in the form of galaxies. For the peculiar motion of our Galaxy, the apex of the rovide a similar variety of physical con- motion agrees with that determined ir.om the cosmic microwave background al- itions in their outer atmospheres? As though the value of the motion is significantly different. Dr G. de Vaucouleurs result of our observations from X-rays summarized the differences between his analysis to obtain the rate of expansion radio, we believe so. Ann Underhill of the Universe (H =100 ± 10 krns -1 Mpc -1 ) and the .earlier work of Sandage and One thing is no w clear and that is Photo: Pierre Guzzo Tam mann which led to a value of H =50±5. is. Cool luminous stars as well as Dr. 's contribution to the meeting of Commission 28 is reported of page ool main-sequence stars have the equi- In the course of J.D. 7 we heard what alent of chromospheres , transition is known regarding these basic problems yers, coronas and winds as do all hot in physics . " Not much yet " is a fair minous stars and some main-sequence assessment of our present state of know- nd subdwarf hot stars. Obser vations ledge. However , at the present rate of btained with the IUE satellite have con- growt h of knowledge we can ho pe that the incingly demonstrated this. Consequently picture will be clearer and even more great unification of outlook is enforced exciting by the time of the 18th-General pon stellar physicists. All have to deal Assembly. ith the problems of high temperature, Who at the 15th and 16th General ssibly varying, moving plasmas occur- Assemblies would have thought that X-ray g in the outer layers of stars. astronomers, observers of hot stars, ob- Once material is seen to be moving servers of cool stars, the infrared and ay from a star, the question arises radio observers had much in common? s to how it got started on its outward The fact is that they have. Each is bring- otion. What is the propulsion force ing to light a different aspect about mass hich Is active? What is the source of loss from stars. The new facts hope- eating? Questions such as these urgent- full y will be woven soon into the fabric need answers. They raise problems of of the theory of the evolution of stars w to carry out diagnostics by means and soon we will have a unified theory of f spectroscopy as well as fascinating pro- stars and how they work . All this, be- lems in the physsics of radiation and cause we can now observe stars in th e ases. Ultimately the source of the winds range of wavelengths from X-rays to em . hich are inferred to be present must be Truly JD's 4 and 7 present a stimulat- ought in the processes which generate ing challenge, a challenge which has direc- nergy in a star and in the manner in tly resulted from the great advances in hich energy is transported outwards instrumentation and detectors which have rough a star. occured in the last five years. Mirec Plavec and friends recalling trips from to England years, ago. ASTEROIDES A VENDRE WHAT ARE THEY? A l 'occasion des cérémonies du sesqui- centenaire de l 'Université de Toronto, le The pleasant AREsummaries ofWE Tues- thatTHEY? the message traffic back and forth departement d'astronomie alors Ia direc- ay's Joint Session on Life in the Uni- between actual spacecraft would proba- tion de M. MacRae décida de remettre un erse given by Drake and Papagiannis bly be very heavy , so that interception cadeau original à I 'Université: un asté- n Thursday night leaves us with the of radio traffic would be a first sign, roide. M. Karl Kamper, attache à l'Ob- eeling that basically not too much has a further justification for carrying out servatoire David Dunlap, entrepris alors hanged except our ability to design more searches at radio wavelengths. But we see des travaux à cet effet , qui durerent plus nd more refined experiments . There nothing. Are we perhaps asking the wrong de deux ans. L 'asteroide Toronto fut dé- re three facts that were true twenty questions? He reminded us that we are couvert sur une plaque Schmidt de I 'Ob- ears ago and they still stand. First- under the spell of such philosophers as servatoire Tautenberg prise par Sidney y, that we have not discovered extra- Aristotle, Mathers and Hesiod, and that van den Bergh il y a déjà plusieurs annees. errestrial life on earth. Secondly, that their ideas still permeate our thinking, II fut en suite retourne sur une plaque pri- e have not discovered any intelligent even though, for example, we know very se à ESO. adio signal s corning from space. Any well that the earth is not at the centre L'orbite de Toronto a une periode de hi rdl y that we are here. We can add of the universe and that exponential growth 5 ans et un semi-grand-axe de 3 UA . mther now, that there seems to be no is always limited somewhere and some- Sa seule caracteristique remarquable est ife on Mars, a rather unexpected result . how . What we need is experiment, using l'inclinaison de l'orbite qui est de 18 the best one we can at the time, since degres. De seulement 30 km de diametre, A moderate view of the number of de- there is no other procedure which wi ll sa magnitude moyenne est de 15 . Ré- ectable civilisations in the Galaxy leads get us to an answer. Either answer wou ld cemment , il a été photographie avec le o an estimate of between 10 3 and 10 6. be of tremendous impact; either we would téléscope de 24 po . de I 'Université de f they , or even one of them , is interes- know that we are one of a Galactic family Toronto au Chili. ed in colonisation then the colonisation or we wouid realize that we are alone rant would probably spread quite qui ckly and in that case we would have the pri- C'est un cadeau unique pour celui ou hrough the Galaxy and one might expect vilege of th e treasuring of the cosmic M. Karl Kamper de l'Observatoire David celle qui a tout. Pensez-y, Noel s'en o see signs of their presence. So where consciOusness. Dunlap. Photo: Pierre Guzzo vi ent' e they? Phili Morrison mentioned PA HUMOUR THE MOTH AND THE STAR v James Thurber A young and impressionable moth once set his heart. n a certain star. He told his mother about this and ne counseled him to set his heart on a bridge lamp nstead. "Stars aren't the thing to hang around", she said; "lamps are the thing to hand around." "You get somewhere that way", said the moth's father. 'You don't get anywhere chasing stars." But the moth ould not heed the words of either parent. Every evening at dusk when the star came out he would start f ying toward it and every morning at dawn he would raw! back home worn out with his vain endeavor. One ay his father said to him : 'You haven't burned a wing months, boy , and it looks to me as if you were never oing to. All your brothers have been badly burned ying around street lamps and all your sisters have een terribly singed flying around house lamps. Come n, now , get out of here and get yourself scorched! big strapping moth like you without a mark on him!" ... The moth . left his father's house, but he would not J o Nou ... y around street lamps and he would not fly around l. 21 He went right on trying to reach the star, .. ouse lamps. 1 of T h1ch was four and one-third light years, or twenty- ive trillion miles, away. The moth thought it was st caught in the top branches of an elm. He never id reach the star, but he went right on trying, night fter mght , and when he was a very, very old moth e began to think that he really had reached the star On decrit souvent Montreal comme " un petit coin siale qui avait été construite au début de la colonie. nd he went around saying so. This gave him a deep d' Europe en Amerique du Nord". C'est l'un des quar- Face à l'eglise Notre-Dame, au centre du square, nd lasting pleasure, and he lived to a great old age. tiers les plus interessant de Montreal, le Vieux Mont- se dresse la statue du Paul de Chomedey, sieur de Mai- is parents and his brothers and his sisters had all réal, que se nourissent les racines historiques du Canada. sonneuve. C'est lui qui, en 1642, a fondé Montreal pour een burned to death when they were quite young . La colonne Nelson, sur la Place Jacques-Cartier, est servir des buts economiques, militaires et religieux. Moral: Who flies afar from the sphere of our le plus ancien monument de la ville. Elle fut érigée 11 n'est pas necessaire d'etre un fervent de la pro- orrow is here today and here tomorrow. en 1809. menade pour apprecier le Vieux Montreal. 11 renferme o pr. c 1940 James Thurber. Copr. c 1968 Helen Thurber. F' rom FABLES FOR UR TIME, published by Harper & Row, New York. Originally printed in Tbe New Un peu plus à !'est, rue Notre-Dame, se trouve certaines des plus anciennes et des plus belles oeuvres orker. !'Hotel-de-ville construit en 1872 . Presqu'en fac e, au d'architecture d' Amérique du Nord. The supposed fascination of a moth for a fla me has sud , on peut admirer le Chateau de Ramezay dont la Reproduit avec la per mission de PROMENADE. simple scientific explanation. Moths use the light construction remonte à 1705. Celui-ci est maintenant f th e Sun or Moon for direct ion-finding in l un musée regroupant d'anciennes pièces de l'artisanat ight : if a moth wished to fl y at a constant bearing, canadien et amerindien. TCH ay 60o , to the direction of the Sun , and in its confu- Le Marche Bonsecours abrita, uncertain temps, l'ad-1 ion , thought that the flame was the Sun , it would fly ministration municipale et des services communautaires . Note: Letter I and num - an equi-angular spiral of pitch angle 60o around Les pavés de la rue Saint-Paul, oii il est situe, datent ber 1 are equivalent de 1849. 11 y a deux eglises importantes dans le secteur. ACROSS paper 4) Unarmed Ce soot Notre-Dame-de-Bonsecours et Notre-Dame. La _j 9) Follow the dotted line 5) Some say it 's hot premiere fut érigée en 1657 en l'honneur de Mère Mar- 1) The superluminous 8 10) Radioactive remnant 6) The little one guerite Bourgeoys, fondatrice au Canada de la Congre- one 7) South at 1700 for a gation de Notre-Dame. La seconde, donnant sur la 3) IN CYGNUS DOWN hot one Place d' Armes, remplace depuis 1829 l'eglise parois- 5) In the local group q 8) NACin LMC 6) In your national news- i I) Out of date catalogue 2) Quasar (Prepared anonymously ' ! 3) Improved by astrono- during the opening Gene- KNOW YOUR .. mers ral Assembl c A p R c R N L s u p E L PUZZLE PICTURE s p A v H p s u E L u u Q E p u v E L A E N A v R G p H E N c p T E R u s c s A R y L T R T u A R G c E c E B s R L R s v A N R T E A E N R A L u Q A u s s .o N A z R D E E T s s N T R M u s N E M E w c E E A M E L T c A R D u M s M u L u c T E R A R B L X N A Q u L A c M X y p N R N R G R A N A c u T y M s u D N E A E N R L A c E R T A L s c T M A J R A R D y H A L u G E R s N A c Th e square hides a number of names of constellations. Mos, but not all, are from the offi cial IAU list. The others have appeared on star atlases fr om time to time. The puz zle is to spell out names , starting with the top right hand co rner, and finishing at the central star, moving oniy hor izontally or verti- cally. Each word is written in a given direction, and the last box of a word shares The sketch is sup posed to ha ve been made from a photograph. The pu zzle - ide it e fir ne r deduce when and where the Today's Events/ les Événements du Jour BULLETINS

AMATEUR EXHIBIT COMMISSION 36 "THEORY 4, OF STELLAR ATMOSPHE RES" FROM CORNELlS DE JAGER ' SESSION 11, August 18 Local amateur astronomer s from a PRESIDENT OF ICSU France- Quebec summ er camp have orga- Program of the Scientific meeting o At the opening of its General Assembl No 7 was omitted by mistake. " Re- nized an exhi bit at Place Desjardins . They Commission 36, on Monday morning, Au- I wish the Int ernational Astronomical U- would appreciate your vi sit. gust 20 from 9.00 to 12 .30 , room G-2215. cent Infrared Observations of Planetary 9 00 nion a most successful and ha ppy mee- nebulae" (Y . Andrillat , Directeur ad - Open from 10.00 a.m. to · p.m. DIFFUSION IN STELLAR ATMOSPHERES ting. The IAU is one of the most distin joint de l'Observatoire de Haute Proven- through Saturday, 18th. ______AND ENVELOPES guished of the ICSU bodies, with a lon G. Michaud (Montreal): The Astro- t radition of sincere international coopera MM ISS IONS 16 AND 17 physical Context of Diffusion in stars and tion and excellent scientific research. (PLANETS AND SATELLITES) THE PARIS OFFICE OF THE IAU Open Problems - 20 min . While being obliged to represent ISC The IAU Secretariat , Observatoire de J . Oxenius (Bruxelles): Uncertain- at the U.N. meeting in Vienna I regre Scientific session: Lunar Research. Paris, the correct address is: ties in the Usual Approach to Diffusion: w1th sadness that I will miss the oppor- Saturday 18 August : 9.00 - 12 :30, Room IAU Secretariat A Microscopic Point of View - 20 min. tunity of meeting so many good friends , D-0305 Chairman: J .D. Mulholland 61 ave, de l'Observatoire S. Wolff: Confrontation between theory and participant in a most impressiv 09.00 Dynamical evolution of the early 75014 Paris. and observations: General. scientific programme. It will be th Earth-moon system L'evolution dynami- ranc..e W. Bonsack (Hawaii): Spectroscopic first lA U meeting which I miss sine que de la jeunesse du systeme terre- COMMISSION 49 PROGRAMME Survey of Stars where Diffusion Occurs - 1948 but be sure that my heart is wit June H. Alfven & J. Hill . 20 min . all of you . 09.45 Present-day dynamics of the Eart- - SCIENTIFIC MEETINGS - S. Vauclair (Obs. de Meudon): Con- moon system /La dynamique actuelle du frontation between Theory and Observa- Kees DeJa er. systeme terre-June R.W. King. August 20, Monday morning tions: Competition between Diffusion and 10.30 Free librations and the lunar dis- Macroscopic Motions - 20 min. A NEW NEAR INFRA-RED sipation parameter Q j Librations li- 09.15 Session I J. Landstreet (Western Ontario): The bres et le parametre Q de la dissipa- l.- Observations of the distant solar role of Magnetic Fields: Critical Eva- PHOTOGRAPHIC SURVEY tion lunaire 0 . Calame. wind (Invited Rewiew) D.S. Intriligator. luation of their Measurement in Stars 10.50 Break / Pause 2.- Properties of the nearby interstellar (The sun is left aside as such). - 20 min. The UK 1.2 metre Schmidt Telescope is Direct determination of the lunar Q from medium (Invited Review ) J.L. Linsky E. Spiegel (Columbia Univ.): On Ne- engaged in a near - infrared Survey of the forced libration / Determination di- 3.-Dust Within the heliosphere (invited glected Hydrodynamical Aspect in the Pre- the Southern Milky way and the Magel- recte de Q de la lune à partir de la li- Review) G. Morfill. sence of Radiative Forces: Horizontal lanic Clouds, in the R and I bands. The bration forcee. 11.15 Session II Aggregation - 20 min. Survey will be published by the Royal J.G. Williams & C.F. Yoder (WITH- 4. Plasma-gas interactions in the dis- Each paper will be followed by 10 Observatory Edinburgh, as a set of 326 DRAWN) tant solar wind and solar wind model- inute discussions. photographs, 14 inches square, being I 11.10 Lunar secular accelaration and the ling (Invited Review). and J pairs for 163 fields. Hydrogen by- variation of gravitation/ I 'acceleration sé- H.J. Fahr. ANNOUNCEMENT gen hypersensitized llaF emulsion and Rg culaire de la June et la variation de Ia 5. Critical velocity effects in astrophysi- There is a concert offered by a group 630 filters is used for the R photographs gravitation L.V. Morrison. cal plasmas (Invited review). of students from the Faculty of Music and silver-nitrate sensitized IV N ernul- 11 .30 A catalogue of lunar transient phe- M.A. Raadu. from th e Université du Quebec àMontr eal sian with RG 715 filter is used for the nomena / Un catalogue des phénomènes 6.- Contributed papers Bird et al. Fa- on August 21, at 18 .00 at the Cent r e Com- I band. The limiting magnitude of the transitoires lunaires W.S. . raday rotation on pulsar signals during rnunaut aire. The music will range from survey is estimated to be 19m . 11.45 Lunar crater distribution and sur- solar occultation. " Two In ventions " by J .S. Bach (1685- For further information, please write face unit ages j Distribution des carteres Ripken et al. A numerical model of 17 50 ) to a saxophone concerto by Pierre- to Elisabeth Sim, Royal Observatory, lunaires et !'age des régions de la sur - neutral gas-solar wind interactions inside Blackford Hill. Edinburgh EH9 3Hj Scot- face E. Wh ittaker. the heliosphere. 12 .05 Lunar surface compo sition from Petelski. Generalisation of Parker's he- MICRODENSITOMETERS thermal enimssion spectra j Co mpo sition liospheric shock equations. other papers - OF THE FUTURE W. Buscombe (391 6) has almost finis he de la surfa ce lu naire du spectre de l'é- time permitting. ce; rnpiling the Fourth General Catalog o mission thermique T. H. Morgan & A. 12.45 Short business meeting. MK Spect ral Classifications, and would ap- Potter. CONCERT OF ASTRONOMERS The Working Group on Astronomical 1- preciate an y preprints of stellar data sen 12 .25 Lunar paleomagnetis m and polar mage Processing is sponsoring an infor- to him at Northwester n University, Evan Thomas Geball (USA ) and Dominique mal discussion on the above topic at the stan, IL 60201 Enquires about earlier ca wandering S.K. Ruocorn. time and place given below. Major rna- tala are welcome too . Proust (France) have agreed to play on nufa ct urers (or potential manufacturers) 5 the 20 August evening. Thomas Geball of microdensitometers sutable for astro- works at Pasadena in D-R spectroscopy COMMISSION 8 and plays the flute since the age of 12 nomical use have been invited to discuss RAIN CHECK? with American and Holland professors . their futu re plans with interested astro- Dominique Proust works at Meudon in the nomers. This is your chance to make There will be an additional meeting of Galactic Evolution Group, and plays the your wishes known to them. Commission 8 in Room 331 5 at 11 :15 on SWEDISH STAR music as a hobby . He belongs to an or- August 20, 14:00 at Pavillon 3200 Jean Wednesday August 22 . ganist group, the School of Notre-Dame- Brillant , Room 3315 , Audio visual equip- The business will comprise: De-Paris. ment will be available. For further infor- ( 1) Conclusion of Scientific Papers UMBRELLA They will give flute and organ conce mation contact: C.T. Bolton Box 0469. (2) Reports of Montreal meetings A novel approach to the dissemination on Monday, August 20, at 9:00 p.m . DEAD LI NE (3) Administrative Business of astronomy to the general public in Swe- in the " Chapell de l'Eglise des Domini- R.H. Tucker (1131). den has been started in 1977 through the cains" 2715 Cote ste-Catherine road. The President creation of the information project - the will play music of european , All material for issue No 6 Monday, r------., Universe, which has already reachd hun- from the Renaissance as up to date. D. August 20 , must be in the METEORE dreds of thousands of persons and will Proust will also play a premiere for the Office by 11.30 a.m. today. ____ touch many more in its continuing efforts XVII General Assembly entitled "COS- You should bring your camera to th during the next few years. Amongst the MOLOGY I ". An improvisation, played POSTER Sky & Telescope display. August 20-22! items produced for the project is a star by both, on a canadian folk song will umbrella with yellow constellations prin- end the concert. Poster for sale $1 at Information Desk. Af- ted on a blue background, which can be fiche à vendre $1 au bureau d'information used as en effective map or a conven- PARTICIPANTS - WATCH THIS tional umbrella, depending upon weather CONGRESSISTES conditions. A small weak flashlight is There are still a few copies of past SPACE (4) attached to its handle. The umbrella, Please refer to your mail box. You issues ofMETEOREavailableatthenews- which costs 50 Swedish Crowns or appro- may have an important message. Consul- tand next to the information desk, and also ximately 12 U.S. dollars, is on display tez votre easier postal, il Y a peut-etr€ in the METEORE office. on the second floor of the Pavilion close un message important qui vous attend to the bank and post office. If you are interested in obtaining a star umbrella write your name and address on the list posted on the nearby wall . For further information, contact Aage Sandqvist (3581) . BOUTIQUE DU CONGRES - ROOM 2405

This print by Davidialuk is just an example of the wide choice of Quebec handic rafts such as follows : Eskimo art paintings 189 5 A. D. The demi-triangle and the and sculptures , enamelled copper, pewter, hem i-triangle are split, and the semi-he- tapes try, weaving, doll collection, hand- mi- triangle and the semi-demi-t riangle bags, potter y, plexiglass, silk scarves, and ar e disco vered. They are thought to be silver and gold jeweller y. the fundamental units out of whi ch the Uni verse is built . 1979

Au gus t 20 Aout 20

Number 6 Numero 6

Office:- Room No. 1265 Editor :- Michael W. Ovenden Téléphone 3 43-5889

Voyager I et II ont observ upit s voyonss sur Jupitere est façon quasi-continuelle depuis lMAjanvier. essentiellementTous identique à toutes les au- Bien que les deux rencontres aient été tres. Ces ovales ont une rotation anti- assez rapprochees, on a observe des chan- cyclonique et ont de petites divergences de gements importants dans 1'apparence de la flux au centre. On pense habituellement planete. Par contre entre les rencontres qu'il s'agit là de tempêtes. C'est l'ap- Vicking il n'y avait presque pas eu de parence qu'elles ont maintenant mais ce changement. C'est autour de la tache n'est pas necessairement comment elles rouge qu'il semble y avoir le plus de tur- ont commence. Les ovales biancs occu- bulence. A l'epoque de Voyager I il y paient auparavant toute la région autour avait un petit nuage qui tournait autour de de Jupiter et sont maintenant divises en la tache. Depuis, un gros nuage est ap- trois fragments . La tache rouge rapetis- paru. Nous avons aussi mesure la vites- se: elle mesurait 40,000 km il y a cent se de ces nuages et des jets entre les ans et n'en mesure que 9,000 aujourd'hui. ceintures et zones. Les jets qui se dé- C'est un indice que tous ces objets sont placent vers !'est sont tresstablesetceux associes avec des ondesdedeplacementet qui se deplacent vers !'ouest sont insta- qu'ils ontunepetitequantited'energiepro- bles. Nous savons maintenant que les pre. Au plus rouge de la tache rouge, ceintures et les zones sont dues à la pe- le fait que nous observons des divergen- tite difference de temperature entre les ces au somm et des nuages implique une pôles et 1'equateur et à la rotation rapi - convergence effie ace so us . les nuages. de de Jupiter. No us observons un e cas- La couleur est probablement reliee au fait cade de la turbulence tel!e que predite par que la tache rouge est vieille, done très la theorie . profonde. No us a vons aussi observe des II existe aussi sur Jupiter des plu- eclairs su r Jupiter. pas seulement au-des - mes equatoriales sur le côté nord de la sus des nuages mais jusqu'a la surface. ceinture equatoriales. A l'epoque de Vo- Les regions bla nches sont probablement yager I il yen avait 13, il y en a 11 pour des crista ux d'ammoniaque au-dessus des Voyager 11. Quelques-unes de ces plumes nuages. Les regions brunes sont situees ont des têtes brillantes qui sont des co- de 20 à 30 km plus bas et les regions Ionnes de convection d'une echelle beau- bleues sont probablement dénudées de nua- coup plus grande que ce que nous obser- ge: nous Y voyons de la diffusion de vons sur la Terre. C'est un exemple Rayleigh. Toutes ces couleurs sont asso- d'interaction d'ondes. Jupiter est un la- ciées avec une chimie très active. De - boratoire parfait pour Ies etudier. puis Voyager l'image que nous avons de Jupiter a. change de façon dramatique. Nous comprenons maintenant que les Jupiter n'est en somme pas très diffé- regions stables de !'atmosphere de Ju- rent de la Terre. Nous y voyons des piter sont très profondes tandis que celles caracteristiques de !'atmosphere terres- s que spatiale 32. qui varient rapidement sont superficielles. tre et des oceans, mais à très grande millions de kilometres. Des detailes de 600 km de diametres peuvent être résolus La tache rouge est la plus grande des echelle . sur cette photo prise à travers un filtre bleu. (Photo de NASA PALOMAR INFRARED MILKY The California Institute ced. The first plate is a jects. that the cost will be in the copies will be produced for J.W .Minges of Technology is making a- sky - 1 i m it e d exposure The atlas is madeavai- range of $500 to $800 per which orders have been re- Director of Business Ser- vailable a near infrared a- through a Wratten 88 A fil- lable in response to consi- atlas. Delivery will be in ceived by that date, no ad- vices tlas of the northern Mil- ter on hypersensitized derable interest expressed the second haH of 1980. ditional orders can be ac- California Institute of ky Way from photographs Eastman IV-N emulsion. by the astronomical com- Orders will be accepted cepted thereafter. Technology from the 1.2 meter Pa- This combination yields munity. It should be poin- until November 15, 1979. Orders should be ad- 1201 East California Blvd. lomar Schmidt telescope by a 1300 A bandpass centered ted out that the plates in Since onl}' the number of dressed to: Pasadena, CA 91125 J .G. Hoessel, J.H. Elias, at 8200 A. The limiting the atlas are not as uni- R.A. Wade, and J .P. Huch- steller magnitude on the form in quality as those ra. A band of sky appro- plates is approximately I= in the Palomar Sky Survey. ximately ten degrees wide 19m. 0. The second plate, Eventually, the present a- centered on the galactic generally taken the same tlas may be superseded by plane is covered by the night , it is a short expo- an infrared survey cove- eighty fields as illustrated. sure through red Plexiglas ring the entire northern he- The field centers are iden- on Eastman 098-04 emul- misphere. ticial with those chosen for sion. The bandpass extends The atlas will consist of the National Geographic from 6100 to 7000 A. The- 160 paper prints in a for- Society-Palomar Obser- se red comparison plates mat similar to the Sky Sur- vatory Sky Survey. Two prove useful in distin- vey. Since the atlas is plates of each field are ta- guishing objects of unusual made available at a price ken and will be reprodu- color fro m variable ob- that cover only the cost of production and handling of the prints , it is not pos- sible to state a fixed pri- ce in advance. Estimates A.TS.he priP.nts and slides from the Voyager mission to based on past experience Jupiter are available from the Astronomical Society of and projected costs for la- 7 the Pacific. Please see their table in the exhibits area. bor and materials suggest . 6 V..I.P.

Q. Why did you take on the job of organizing thisALAN BATTENthe Union, attendance at General Assemblies is stabi- General Assembly? lizing somewhere between 2,000 and 2,500 participants - That is a question I frequently ask myself! There . a useful fact, if it is a fact, for future organizers to are several answers, but I suppose the fundamental one know. is that if we believe that these big international mee- Q. Will Assemblies of the future be similar tore- tings are worthwhile - and despite some reservations l cent ones or not? do - then some of us must be prepared to give up some Your guess is as good as mine. If I am right about of our time to their organization. I have been lucky numbers, then there should be nogreatpressureto chan- enough to attend several Assemblies - my first was in ge the present format, which has been developed to fit Moscow in 1958 , and I have been at every regular Ge- the large assemblies of the past two decades. On the neral Assembly since (although I missed the Extraor- other hand, ideas of presentation change. Poster ses- dinary General As sembly in Poland). I have enj oyed sions are becoming ver y popular at some meetings , the hospitality of many countries, and I welcome the and one has been attempted at this Assembly. If they chance to offer some return now, on behalf of Canada, were to become a large part of future assemblies, some to colleagues from those countries. Since I am free of the pressure might be taken off Commissions, and of regular teaching obligations, I am able to do the job they could revert to their original roles of organizing more readily th an are many of my colleagues . international cooperation and setting fundamental stan- Q. What have you learned from organizing this dards. On the other hand , large-scale poster sessions General Assembly? would require much more open space than we have avai-. Chiefly that big scientific meetings are big business. !able here, and might be difficult to organize in some Our total budget is well in excess of a quarter of a mil- places. Many changes could be made to the organiza- lion dollars, and works out at between $100 and $150 per tion. The cost of an Assembly could be reduced, for participant. The final figure , of course, will not be avai- example , if various features that we have become used lable until after the Assembly. I think most of us do to but which are not scientifically necessary were drop- not realize this cost, unless we get involved in the orga- ped. All these, of course, are only personal sugges- nization. When you add to the actual cost of the Assem- Alan Batten tions. The Executive Committee is the group that, as bly itself all the money that it spent by participants on Chairman of the N.O.C. your representatives, makes the decisions about Ge- coming here and living here, then you have several mil- bership which increased by about 700 or 23% between neral Assemblies. lions of dollars. the two Assemblies. The reason may be partly geogra- Q. Have you any final word for participants? Q. How many people have come to this Assembly? phical, of course. Crossing the Atlantic seems expen- I hope that they are enjoying themselves and that Again, the final figure will not be available until sive to many Europeans. On the other hand, the largest they are finding the meetings scientifically profitable. after the Assembly, but we believe we have approxima- Assembly on _record is the one in Prague in 1967 , I hope as many of them as can will take some time to see tely equalled the attendance in Grenoble - that is to say, which had nearly 2,500 participants, although the total other parts of Canada, and I hope they will take home as between 2,100 and 2,200 people. It is interesting that membership then was still under 2,000. This seems happy memories of Canada as I haveofthe various coun- the attendance is not going up in proportion to the mem- to suggest that, regardless of the total membership of tries in which I attended lA U meetings.

CANADIAN ASTRONOMY PULSARS L'ASTRONOMIE COSMIC CLOCKS Radio pulsars continue to surprise and to the time of their formation gives a GOUVERNEMENT ALE delight astronomers. In a review paper mean lifetime of about 4 million years. on the observational work on pulsars, This agrees well with the mean lifetime (Commission 35 , 40 and 48 on Friday), estimated by looking at the slowing-down J. Taylor said that one can find ampli- rate of short period pulsars, but long- U CANADA tude variations on any scale from a bil- period pulsars must somehow have adjus- nar Ian Hallidav lionth of a second to a million years, a ted their periods so that they give a false Les premiers astronomes à être employés par le gouvernement canadien furent remarkable range which allows plenty of impression of their age. The distribu- engages en 1885 pour mener à bien des levés géodésiques à travers les montagnes scope for anyone who chooses to work in tion of period changes in pulsars also de 1a Colombie-Britannique de part et d'autre de la route que suivrait le chemin the field . Pulsars as clocks are as good points to a finite lifetime and, amazingly de fer Canadien Pacifique. A l'epoque, la completion du chemin de fer qui relieralt as the best we have on earth; if one al- enough, some close to this have been ob- Montreal à Vancouver était une question politique vitale et la determination de longi- lows for the steadily decreasing periods served to have wildly unstable periods as tudes à travers les montagnes était un probleme formidable que !'utilisation des tech- many are accurate to at least 1 part in if they are about to stop ticking. niques de J'astronomie resolvait au mieux. Le premier observatoire à s'occuper des one thousand billion. levés géodésiques fût installe à Ottawa en 1887 , les batiments de l'Observatoire fédé- A.G. Lyne, observing the proper mo - BINARY PULSAR TESTS RELATIVITY ral étant complétés et occupés dès 1905 . Cette année-là, le personnel de l'observa- tion and parallax of 21 pulsars found that toire comptait onze membres pouvant être considérés comme astronomes ou géomè- 17 of them were racing away from the Several years of monitoring of the bi- tres experts. galactic plane. Assuming they were crea- nary pulsar by Taylor has resulted in the Comme toute Ia partie ouest et , plus tard, le nord du Canada s'ouvrait au develop- ted in the plane of the Galaxy and using most stringent tests yet on general rela- pement, des levés géodésiques precis resterent evidemment une nécessité pratique their space velocities to extrapolate back tivity . In principle, seven effects can be urgente pendant de nombreuses annees. Mais l'observatoire fédéral reussit neanmoins à (1905) , en mettant au point un telescope refracteur de 15 pouces (1905), une lunette meridienne (1907) et, en initiant des recherches en geophisyque. Les limitations du pour leur part, ont joué un rôle important dans Ia conception et la construction du telescope de 15 pouces quant aux mesures de vitesses radiales devinrent vite appa - telescope Canada-France-Hawaii qui sera inaugure le mois prochain. rentes et Ia construction d'un plus grand telescope fut approuvee et complétée près Les travaux poursuivis pendant la guerre au Conseil national de recherches du de Victoria, C.B., en 1918. Ce telescope de 72 pouces, bien qu'extensivement modi- Canada dans le domaine des radars et d'autres formes d'electronique s'avérèrent un fié au cours des temps, est encore à I'heure actuelle un des instruments les plus im- apport precieux à la nouvelle science de radioastronomie. Des groupes pionniers s'at- portants de l'observatoire fédéral d'astrophysique. taquerent à l'étude du bruit solaire aux longueursd'onde radio ainsi qu'à !'observation A Ottawa même, l'observatoire fédéral continuait à developper son activite en de météores par radars. D'autres branches de la radioastronomie s'epanouirent par géophysique et dans certains domaines de I'astronomie ne necessitant pas !'utilisation la suite et, en 1966, le radiotelescope de 46 mètres de diametre entra en opération à de grands telescopes tels que Je service de l''heure, l'astronomie de position, l'as- l'observatoire radioastronomique du pare Algonquin en tant qu'instrument d'observa- tronomie solaire et !'etude des météores. Un projet important visant à reconnaitre tion d'usage nationale. En 1967, une equipe de radioastronomes formee d'universi- à travers le Canada et à etudier d'anciens crateres formes par !'impact de météorites taires et d'astronomes gouvernementaux utiliserent avec succes pour la premiere puis érodés permit de combiner intérêt en astronomie et expertise en geophysique. fois une technique appelee interferometrie à très grande base, combinant les signaux La naissance de Ia radioastronomie força la recherched'un site sans interference aux enregistres par le reflecteur parabolique de 26 mètres à Penticton avec ceux du té- longueurs d'ondes considérées et c'est ainsi que l'observatoire fédéral de radioastro- lescope de 46 mètres à Algonquin pour mesurer les diametres de plusieurs quasars. physique fut créé au sud de Ia ville de Penticton à 1'interieur de la Colombie-Bri- Des observations à basse frequence ont été poursuivies à Penticton puisqu'un site tannique. L'observatoire ouvrit ses portes en 1960. En 1970, une reorganisation de d'un cal me aussi exceptionnelle perm etta it. En 1965, une longue rangee d'antennes bi- toute l'astronomie gouvernementale transferra la recherche astronomique de J'ob- polaires permettant de sonder l'espace à 22.25 MHz était mise au point, bientot suivie servatoire fédéral au Conseil national de recherchesduCanada. La lunette de 15 pou- par un systeme similaire à 10 MHz, juste à temps pour observer le ciel pendant Ia ces fut par la· suite démontée et transportee au musée national des sciences et de Ia période de minimum solaire 1964-65 . Mentionnons aussi la decouverte particuliere- technologie à Ottawa où elle est encore utilisee à des fins pédagogiques. ment significative, au moyen du telescope de 46 m, des trois molecules interstellai- Depuis plus de soixante ans, Ia tâche principale de l''observatoire fédéral d'as- res les plus grosses, HC5N, HC7N et HC9N. trophysique est centree sur Ia spectroscopie stellaire. Les premieres mesures En 1975, toute les activites astronomiques du CNRC furent concentrees à l'inte- precises de la taille et de la rotation de notre galaxie proviennent d'une étude des rieur de l'Institut Herzberg d'astrophysique, ainsi nommé en l'honneur de Gerhard etoiles O et B entreprise durant la premiere décade de I'observatoire. En de nom- Herzberg, l'un des conferenciers invites à cette 17ième Assemblee générale. L'ins- breux domaines rattaches à la spectroscopie, les contributions furent aussi importan- titut comprend plusieurs groupes de recherche, couvrant les domaines de Ia spec- tes: pensons seulement aux binaires spectroscopiques, à la spectrophotometrie, aux troscopie appliquee à l'astrophysique, de Ia physique spatiale, de la radioastronomie, etoiles Wolf-Rayet et P Cygni, à la calibration et la classification de luminosite des des aurores et de la magnetosphere, des etudes solaires optiques, de l'astronomie !ignes interstellaires, pour ne mentionner que celles-la. La mise sur pied d'un té- des météores et inclut de plus les observatoires d' Algonquin et de Colombie-Britan- lescope de 48 pouces en 1962 fut une addition importante à l'observatoire. Des sys- nique. Nous sommes impatients de partager avec d'autres astronomes canadiens et tèmes optiques innovatifs permettant à des telescopes relativement modestes de four- avec nos collègues internationaux !'utilisation du télescope Canada-France-Hawaii de nir des resultats superbes, ont aidé à créer la reputation de l'observatoire.comme pos- 3.6 mètres ainsi que de nous lancer dans de nouveaux et fascinants projets de recher- sédant une tradition de très bonne instrumentation. Les;.astronomes de Victoria. ches. ASTRONOMY FACING IDENTITY CRISIS An identity crisis of chaotic propor- the designation of astronomical objects. tions has resulted from the rapid rate of Secondly, the working group recommended discovery of new types of astronomical ob- that the lA U put together a brief publi- jects , a crisis which is testing systems cation giving all the standard catalogue ab- of astronomical nomenclature to the limit. breviations. Thirdly , it would include a Fed by a new generation of large teles- guid e on the nomenclature of particular copes and ultrasensitive detectors, the types of objects to become a standard frontiers of research and discovery now reference work; Dr. Jaylee Mead of the lie far beyond the limits of a few years NASA stellar data center offered to coor- ago. Many astronomers, perhaps even a dinate such a guide. Fourthly, designa - majority, routinely work on objects too tion hierarchies were recommended: for faint to appear in the standard catalogues stellar objects this hierarchy would be such as the HD, NGC or IC . Further- star name (e.g. Sirius, Vega) for the few more, access to many new regions of the brightest stars, then letter, Flams- electromagnet ic spectrum have unveiied a teed number, HR BSC, HD' BD or CoD complex of radioline, radio continuum , or CPD , and finally some catalogue desi- IR , UV , X-and gamma-ray sources, many gnati.on with accurate positions and pos- interrelated, which relations emerge only siblv finder charts. The SAO catalogue, with ti me. These development s have r ecently popula r among observers of dou- mushroomed to the present crisis in no- ble stars by occultation techniques, is not menclature: the problem of how to spe- considered satisfactory because ofthe va- cify an object of study in a manner use- rying limits of completeness of the cata- ful and recognizable to the researcher of logue (particularly near zero hours nght today and tomorrow. ascension). For non-stellar objects, the Commission 5 of the International As- NGC or IC number should be given, then tronomical Union, the commission concer- a designation on the Parkes system using ned with documentation, has been wrest- right ascension and (1950), or ling with these problems for some time. for objects of a pronounced Galactic dis- Its meeting on Tuesday, August 14 under tribution within our own galaxy, using ga- Radio map of the nucleus of Arp 337. That's tbe irregular galaxy 3C231. All the the chairmanship of C. Jaschek (France) lactic latitude and longitude. NGC fans will have of course recognized 3034 or 0954 69. Still puzzled? How about saw considerable discussion of this issue These recommendations now go before plain old M82. as the Commission's workinggrouponno- the other commissions for their conside- (Map of Kronberg, Biermann and Schwab) menclature. headed by W.P . Bidelman ration. Their intent is to preserve ease (U.S.A.) reported its recommendations. of recognition with precision. The use- ces. The complication with extended sour- seconds of AFC or less apart are resol- Briefly the working group recommended fulness of existing cross-identification ca- ces however is that yesterday's radio ved . as follows firstly that authors use at talogues available to astronomers from the source (for example) resolves into a dozen Are you puzzled that no one has ci- least two designations for principal objects five stellar data centers, namely the Cen- source components today with higher re- ted your fundamental, definitive paper on in their studies. One of these should be tre de Donnees stellaires (strasbourg), solution study, and several times that that fabulous but obscure object XYZ 987? a designation conta ining at least rough NASA stella r data center and the Soviet , number, with some perhaps having infra- Perhaps no one knew what you were tal- positional information, as for example Japanese and East German (Potsdam) data red andjor radio line components in some king about! As one participant in Tues- does the HD catalogue (which is ordered centers, was emphasized. future, still higher resolution study, and day 's discussion noted, it 's only common by 1900 right ascension); alternately the In the discussion, some participants future, still higher resolution study. The sense and good salesmanship to use as coordinates of the object should be given. saw resolution of the faint star designa- Parkes system provides at least for some many designations as may be useful to Editors of all astronomical media would tions as a vital step to solving nomencla- continuity in these designations, but be- connect your object of study to the pre- be asked to be particularly careful about ture problems for other types of sour- comes unwieldy when components a few vious (and subsequent) literature. .. aa observed by pulse timing of this close Revue Trimestrielle Canadienne; pré- binary: the periastron advance, second- sident de la Commission des assurances sociales de Québec (1930-1933); president order doppler effect, gravitational red- EDOUARD du Comité de revision des taxes de la shift, gravitational propagati_on delay, Edouard Montpetit est né à Montmagny province de Québec (1937-1940); membre . v jc**3 orbit correction, geodetic preces- le 26 septembre 1881. 11 était le fils du Conseil municipal de Montreal (1940- sion and gravitational radiation. Some d' Andre-Napoleon Montpetit, avocat et du Comité fédéral de reconstruction d'a- of these are not yet possible because of homme de lettres et d'Adele Labelle. 11 pres-guerre (1940); membre du Conseil our incomplete understanding of pulsar e- obtient son baccalaureat ès arts en 1901 municipal de Montreal (1940-1942); direc- mission and the inclination of the orbit. et complete ses études de droit à l'Uni- municipal de Montreal (1940-1942); mem- However, with the basic orbital parame- versite Laval de Montreal en 1904 . E- bre de la Chambre de commerce du dis- ters known to some 12 significant fi- douard Montpetit sera le premier boursier gures, the precession is measured to be trict de Montreal (1940); directeur géné- officiellement délégué par la province de ral de I' enseignement technique de la 4.225±.001o/year, gamma as 0.005±0004 Québec à Paris en 1907 d'où il reviendra province de Québec et president d'honneur seconds, the pulsar mass as 1.28 solar en 1909 a vee un dip lôme de I 'Ecole libre de !'Association générale des diplômés masses and the companion 1.55 solar mas- des sciences politiques et un autredu Col- de l'Université de Montreal (AGDUM , ses (both ±0.11 ). The binary period is lège des sciences sociales de Paris. changing by gravitational radiation. Li- 1946-1947). 11 était membre de l'Aca- Admis au barreau en 1904, Edouard démie royale de langue et de litterature mitations ont the companion size indicate Montpetit exerce la profession d'avocat that it too is a compact object (or at françaises de Belgique depuis 1924, mem- en plus d'être chargé de cours d'economie bre de la Société royale du Canada depuis most a helium star). Further work will politique à la faculte de droit de l'Uni- 1914 dont il fut president de la section continue to refine the already amazmg versite Laval de Montreal jusqu'en 1907, française (1931) et membre de l'Acade- conclusions drawn from listening to the date de son départ pour la France. A son ticking of this particular cosmic clock. mie coloniale de France depuis 1936. retour, il est nommé professeur d'econo- En 1925, Edouard Montpetit , mie politique à !'Ecole des hautes études en Sorbonne, à titre de professeur a- commerciales de Montreal et à la faculte gréé de l'Université de Paris, dix le- de droit de l'Université Laval de Mont- çons sur le Canada. 11 donna égalément . réal. 11 accède au poste de professeur d'administration (1920-1950), membre du ces dix leçons à l'Université de Bru- titutlaire de la chaire Forget sur la lé- Comité executif (1920-1939), membre de xelles en 1928. 11 fut trois fois confé- gislation financiere, commerciale et in- la Commission des études (1920-1950), rencier de la Clarence Webster Foun- dustrielle (1913-1920). En 1915, ilassure membre de la Commission d'etude sur le dation à I 'Université Mount Allison en l'enseignement du droit romain à la facul- probleme financier de l'Université de 1928. té de droit. 11 abandonne ces deux chai- Montreal (1937-1940), professeur à !'E- M. Montpetit était detenteur de deux res en 1920 alors qu'il est nommé secré- cole des .hautes études commerciales doctorats reguliers: docteur en droit de taire général de I 'Université de Montreal. (1910-1939) et professeur à la faculté l'Université Laval de Montreal (1917) et En cette memê année 1920, il fonde l'Ecole de droit (1910-1954). Il fut nommé doyen docteur ès sciences politiques, écono- des sciences sociales, economiques et po- honoraire de la faculte des sc1ences so- miques et sociales (1940); et de cinq doc- litiques dont il prend lui- même la direc- ciales, professeur émérite de !'Ecole po- torats honorifiques: docteur ès lettres tion. Cette école deviendra plus tard la lytechnique, professeur titulaire de !'E- (ottawa, 1927); docteur ès lett res (Poi- faculte des sciences sociales de 1'Uni- cole des hautes études commerciales et tiers, 1935); docteur ès sciences com- versite, l'une des fa cultés qui, intégrées secreta ire général honoraire del 'Univer- merciales (Montreal, 1935); docteur en les unes aux autres, ont donné naissance sité de Montreal. droit (Lyon, 1935) et docteur en droit à !'actuelle faculte des arts et des scien- Edouard Montpetit milita dans diver- (McGill, 1944). 11 fut fait Conseiller du ces, créée en 1972. Edouard Montpetit ses organisations pour lesquelles il eut roi (1918) , Chevalier de la Légion d'hon- fut le délégué du gouvernement fédéral à remplir des fonctions de premier or- neur (France, 1928), Chevalier de l'Or- canadien aux conferences internationales dre: president del' Association canadienne dre de Leopold de Belgique, Commandeur de Gênes et de La Haye en 1922. En française pour l'avancement des scien- de l'Ordre de l'Etoile noire (France, 1931 , il devient directeur des relations ex- ces (ACFAS , 1925-1926); président du 1934), Officier de l'Ordre de la fidélité terieures de l'Université de Montreal. Du- Cercle universitaire (1927-1928); prési- française (1950) et Chevalier de l'Ordre rant sa longue carriere, il occupa les dent canadien de l 'Institut scientifique souverain et militaire de Malte (1953). fonctions suivantes àl'Universit é de Mont- franco-canadien (1948); secrétaire géné- 11 fut bénéficiaire de la medaile de }'Eco- réal: secretaire général (1920-1950), ral puis vice-president du Comité Fran- le libre des sciences politiques de Paris doyen de la faculte des sciences sociales ce-Amerique (1911); membre de la Com- (1925), de celle de la Société royale du Joe Taylor (1920-1950), membre du Sénat académique mission des écoles catholiques de Mont- Canada (1935) et de celle de l'Academie Photo: Pierre Guzzo (1920-1950), membre de Ia Commission réal (19Z8-1937); rédacteur en chef de Ia coloniale de France (1936). BULLETINS

CONCERT MONIQUE LEYRAC COMMISSION 28 - WORKING IMPORTANT NOTICE/ GROUP FOR EXTRAGALACTIC CHANGE IN LOCATION OF GEN ERAL Ce soir à la Place des Arts au Théâ- ASSEMBLY tre Maisonneuve aura lieu le spectacie de SURVEYS FROM SPACE Monique Leyrac à 20.30. Le prix Ca- Meeti ng on: Wednesday, August 22 at The location for the closing General lixa-Lavallee de la Société St-Jean Bap- 9: 15 a .m. in room 3290 Assembly on Thursday, August 23 has been tiste lui a été décerné recemment. A. ADMINISTRATIVE changed from A-2285 in Pavillon 3200 to "Comédienne à 14 ans et chanteuse à B. SCIENTIFIC the large auditorium in the Pavillon Prin- 18 ans, Monique Leyrac a toujours mené cipal (wher e the evening session on "Life depuis les deux carrieres alternativement. 1. The spacelab wide angle telescope in the Universe" was held). The time of Elle a joué de nombreux rôles au théâtre, (SWAT)- H.J. Smith the Assembly remains unchanged (10.00 ainsi qu'à la télévision et au cinema. 2. The ESA space Schmidt - R. West a. m. ) Dans les années soixante, elle rencon- 3. Th e U.K.-Schmidt Surveys and possi- tre Gilles Vigneault qui écrit mais ne ble implications for SWAT-R.D. AVIS IMPORTANT chante pas encore elle fait un 33 tours CHANGEMENT DU LIEU DE L'ASSEM - 4. Prospects for low dispersion spectros- BLEE GENERALE de ses chansons. Monique Leyrac copy with a space Schmidt -M. McCar- Elle participait à deux festivals à thy Sopot et Ostende, où 35 pays sont repré- portantes emissions télévisées, donne un L'assemblee générale se reunira jeu- di, le 23 août à !'auditorium du pavillon sentes; elle rafle tous les prix avec les recital à Town Hall et un autre à Car- other contribution can be added if time chansons de Vigneault. negie Hall. principal (oii a eu lieu Ia. session "Life allows. Contact R. Barbon, Italy, 2509. in the Universe" jeudi soir) plutot qu'au En 1966' elle chante en vedette à 1'O- En 1976 , elle imagine un spectacle Deadline Tuesday, 21st. lympia et l'annee suivante à Bobino dans dans le même style que le précédent mais A-2285 du pavillon 3200. L'heure sera le programme de Béart, puis une autre completement different, sur le poète Fé- COMMISSION 31 Ia même (10.00 a.m.) année dans celui de Brassens. lix Leclerc. On redecouvre Félix et la Monique Leyrac fait une tournee en critique est unanime: "C'est le plus beau At the first administrative session, the NUCLEI OF NORMAL GALAXIES Russie, change à New York dans d'im- spectacle de 1'an née. President presented for consideration the possibility of merging Commission 31 with Montreal, August 21, 1979 C0MMISSION 25 - CHANGE another commission, or making changes in Joint Discussion Co-Sponsored by COMMISSION 28 the areas of its concern. After a spiri- Commissions 28, 33, 34 , and 40 IN SCHEDULE, August 20 ted discussion period, the subject was of the International Astronomical Union The Working Group on the Magellanic postponed to the next administrative mee- "New Techniques in Photometry and Clouds will now meet in Room B2305 to- ting on August 18. Session I. (W.B. Burton, chairman) Polarimetry" day, at 9.15 a.m. J.H. Lacy (University of California): The table of mntents for the Source Infrared results on kinematics of ionized Part I: "Photometry" will be held as CONCERT DES ASTRONOMES Book in Astronomy and Astrophysics 1900- gas in nuclear region of our galaxy. Com- scheduled: 9.00 a.m. 1975 is on display on the bulletin board pari son of infrared continuum results from Part II: "Polarimetry" will be presen- . ted not t b t t . Thomas Geballe (USA) et Dom1mque of Commission 41. The authors, Kenneth the nucleus of our galaxy with those from E- a 11 ·00 u a 14 ·00 in room Proust (France) ont accepte d'assurer R. Lang and Owen Gingerich, have provi- M31. 0325 Ia soirée du 20 aout. Thomas Geballe ded historical discussions of 132 classical 30 minutes COMMISSION travaille à Pasadena (Californie) enspec- articles which are reproduced in edited G. Wynn-Williams (Cambridge): Infrared 22 _ METEORS AND troscopie infra-rouge et joue de 1a flûte form and often for the first time in En- emission from the nuclei of spiral gala- depuis l'age de 12 ans avec des profes- glish translation. The book is now availa- xies. INTERPLANETARY DUST seurs americains et hollandais. Domini- ble from the Harvard University Press at 5 minutes que Proust travallle a Meudon dans the list price of $60 .00 . H.S. Liszt (Nati onal Radio Astronomy Ob- Monday , August 20, Room 3295 le groupe Evolution Gala clique et cons a- servatory): Molecular studies of the gas 09.00 Administrative ere ses loisirs à la musique. II fait AN ASTRONOMICAL distribution and kinematics in the inner 11.00 Scientific Session partie du groupe d'organistes de l'Ecole region of our galaxy. Review of the re- de Notre-Dame-de - Paris. TRADE-SHOW cent molecular investigations of other ga- Present and Future Observational Ils donneront un Récital Orgue et Flû- lactic nuclei. te , lundi 20 auût 21:00 precises , dans Ia I woulrl like to remind you that star- 30 minutes Techniques: Chairman - W.G. Elford à ting toda y, August 20 and continuing 1. Interplanetary Dust chapelle de l'Eglise des Dominicains Y. Fukui (Tokyo): An anisotropic gas jet (2715 , chemin de la Côte Ste-Catherine). through Wednesday, August 22 , several from the nucleus fo the galaxy. -J .A.M . McDonnell Au programme sont prevues des oeu- companies with astronomical interests 5 minutes 2. T.V . - Optical Devices will have display booths open on the se- vres de compositeurs europeens , de Ia Re- Session II. (H. van der Laan , chairman) - J. Jones, R.L. Hawkes cond floor of Pavillon 3200 Jean-Brilliant. naissance à nos jours, ainsi qu'une créa- R.D. Ekers (Mount Stromlo and Widing 3. Camera Networks tion immediate de D. Proust, !'occasion As was mentioned last week in the à METEOR , D. Reidel Publishers, the offi- Spring Observatories): Structure and va- - I. Halliday de la XVII Assemblee générale de I'UA I: riability of normal galactic nuclei. De- 4. Radar COSMOLOGIE I. Ils improviseront tous cial IAU publisher , are exhibiting a va- riety of their books, especially the mate- tailed structure of Sgr A. VLBI results. - O.I . Belkovich les deux sur un populaire canadien 30 minutes - C.S.L. Keay pour clore le concert. rial related to the lA U. Sky Publishing Corp. will likewise have a display of R.H. Sanders (): their various publications, including their Theoretical considerations on the dyna- instructional materials for astronomy. In mics of normal galactic nuclei. WAT ( H T IS COMMISSION 27 _ the same vein Gall Publications, plus tho- 30 minutes - se of several other major publishing hou- T .M. Heckman (Sterrewacht Leiden): Op- Sp A( E ( 5} vARIABLE STARS ses well-known for their contribution to tical and radio observations of activity Additional meeting astronomical texts and reference books. in normal galactic nuclei. August 21 at 11.15 a.m. in room D0305 Those of you especially interested in 15 minutes - General science, J. Smak astronomical instrumentation should be Session III. (K.C. Freeman, chairman) well- satisfied. M. Scbwarzschild (Princeton Universi- ty): Triaxial dynamics in the nuclei and COMMISSION 31 Eastman Kodak will be ready to dis- nuclear bulges of normal galaxies. cuss pertinent, or hyper-sensitive, is- 15 minutes At the August 17 meeting of Commis- sues, if you like. A combined exhibit sion 31 (Time), C.O . Alley presented re- S.M. Faber (Lick Observatory): Dis- view of the relativistic effects in time- by Roger Tuthill, Celestron International, tribution of mass and light in galactic keeping and emphasized their importance and Efstonscience Inc. of Toronto will nuclei. in the synchronization of precise clocks. reprensent a variety of small telescopes, 30 minutes instruments and accessories ofparticular J. van der Hulst (University of New experiments in time transfer using interest of small telescopes, instruments M. the Hermes satellite were described in Minnesota): Continuum mapping of the papers by C. Costa in and P. Nus pl. Re- and accessories of particular interest to nuclei of normal galaxies. Results of the astronomical educator. / sults from time transfer experiments with initial LVA surveys. ' the Symphonie satellite were discussed in Observatory and laboratory instru- 30 minutes a paper by J . Rutman, and a proposed mentation will be broadly covered by the Session IV (F.J. Kerr, chairman) exhibits of following major manufactu- experiment using the Space Shuttle was D. Crampton (Dominion Astrophysical 1932 A.D. The situation becomes more treated in a paper by S. Starker. rers: Carl Zeiss Canada, Grubb-Parsons division of NEI-Parsons; Applied Optics Observatory): Spectroscopic survey of the complicated when the anti-semi-demi-tri- In the second session the future needs nuclei o! normal galaxies. angle and the anti-semi-hemi-triangle for clock synchronization were described Division of Perkin- Corp.; and R.E .O.Sc. of France. Even if you 5 minutes are discovered. by S. Leschiutta, and some possibilities W.A. Sherwood (Max Planck Institute for future methods were treated in papers think that you are familiar with each com- CORRECT IO N pany's products, I'm sure that each has Bonn): Spect ra of nuclei of early type Note an error in August 17 METEOR by W. Klepczynski and G. Winkler. The galaxies. former reviewed some results from re- prepared a surprise or two for all of LAST PAGE (p.4) in regard to Joint Mee- us. 5 minutes ting Commission 28 and 33 . cent VLBI experiments while the latter V.I. Pronik (Crimean Astrophysical Ob- These exhibits should prove to be a W.W. Roberts, "Gas Flow in Galactic described the possible use of the GPS sa- servatory): Centers of star formation tellites for timing. S. Iijima pointed out very informative and entertaining way to in the nuclei of galaxies. Bars" ..... is missing from the article. pass any uncommitteed time you may ha- This should have been the last of the in- in his paper that the formation of the P.L. Biermann (Max Planck Institute for TAl time scale might be improved if ve. And remember, this sort of interac- Radio Astronomy): Star !ormation in the vited talks. tion profits everyone in th e long run. P. Schwarz gave only a 4-minute brief the present methods of comparing clocks nu cleus of our galaxy and in the nuclei report at the end of the session after in the Far East with those in Europe and of normal galaxies. w.w. Roberts ' talk. North America could be improved. John Glaspey 30 minutes 1979

August 21 Août 21

Number 7 Canada Numero 7

Office:- Rcom No. 1265 Editor:- Michael W . Ovenden Téléphone 3 43-5889

The introduction of focussing-optics techniques in the X-ray telescope of the - Einstein Observatory has led to a leap forward in our ability to map the X-ray sky. Whereas previously only the brigh- test X-ray sources could be detected (u- nusual stars or galaxies), the Einstein Ob- servatory allows us to observe all ob- , · jects of astrophysical interest from the weakest stars to distant quasars with a sensitivity 1,000 times greater than befo- re and with a resolution of a few seconds of arc. Riccardo Giacconi, the director of the Observatory, summarized some of the ob- servations made by the Einstein Obser- vatory since its launch in December 1978 in a short introductory talk given in com- mission 48 on Friday, prior to Monday 's Joint Discussion on Extragalactic High E- nergy Astrophysics. The long-standing question of whether the X-ray background is truly diffuse or the sum of many individual sources is close to being answered. Taking deep exposures of " empty " areas of sky shows point sources coming out of the back- ground , many of which turn out to be quasars. Already at least one third of the background can be explained in this way and quite probably all of it. The hot .. gas suggested from earlier observations . to contain enough mass to close the uni- verse is simply not there and the Eins- tein observations add further evidence to the presently-favoured view of an open u- niverse. The most distant cosmological objects known can now be conveniently detected Central region of Andromeda Galaxy shows numerous X-ray sources. Four have been identified with globular clusters and one is probably the galactic nucleus in X-ray in times that are not too long . Closer to home, the Einstein Observa- and even WUMa stars has excited stellar The ability of the new telescope to de- tory has found some 80 point sources in astronomers to rethink their theories of tect quasars is phenomenal. 90% of M31 and others in the LMC , which as- stellar coronae and evolution. We all wish those to which the telescope has been point- tronomers are eager to identify. On our the Einstein Observatory a long life and ed have been detected. Already some new doorstep, the unexpected discovery of X- continued success in mapping the energe- quasars have been detected and a new class ray emission from 0-stars and M-stars tic universe. of low-redshift, radio-quiet quasars is e- merging. The sensitivity of the instru- ment is such that it should be able to detect quasars up to a redshift of about 5, if only we knew where to look. The Einsteiil observers arehopefultooofmea- DINER DE CLOTURE CLOSING DINNER suring a redshift directly, but so far no Gymnase Sir Arthur Currie à I 'Uni- Sir Arthur Currie Gymnasium at Mc- lines have been found in any quasar spec- versité McGill. Gill University. tra at X-ray wavelengths. Transport: Les autobus partiront des Transportation: Busses will leave X-ray observations of radio galaxies residences: à 18.15, et du Reine Eliza- from the residences: at 18.15 , and from show great promise. At last there is beth: à 19.oo. the Queen Elizabeth: at 19.00. direct evidence for a massive, dark halo "VENEZ VOUS AMUSER AVEC NOUS! "COME AND HAVE FUN WITH THE round M87 which must contain more than Mercredi, 19.00, bar ouvert, buffet LOCAL ORGANIZERS." 10 times the mass of the galaxy to pro- gastronomique: pièces montees et rnets Wednesday; 19.00, open bar, fancy. vide the gravitational potential to hold chauds et froids. hot and cold buffet. the hot X-ray-emitting gas observed. X- Danse: Musique internationale. Spec- Dancing: International Music, Enter- ray emission from Cygnus A is found to tacle: Danseurs et chanteurs, folklore tainment: Quebec folk dancers and sin- come from the entire cluster rather than du Québec. Cadeaux-souvenirs. Prix: gers. Gifts . the central Cd galaxy and radio source. $25.00 par personne (tout inclus). Bil- Price: $25 .00 per person (all includ- Riccardo Giacconi finds a few more qua- In Centaurus A Einstein has resolved an lets en vente aJ 'information. ed). sars. X-ray jet coincident with the recently dis- Votre .Comite Local. Tickets available at the Information Photo : Pierre Guzzo covered optical iet. Desk. V.I.P. MME EDITH MUELLER WELCOME BACK!

SECRETAIRE GENERAL DE L'UAI On the first day of the IAU, John Glaspey decided o go into the hospital. We diagnosed it was "overwork", while the experts decided it was ''diabetes". John and Q.-Parlez- nous de votre expérience comme secretai- sonnes proposent des noms pour le prochain president Marie Giard are in charge of the exhibits. Marie is re général de l'UAI. et secretaire général adjoint. Le present secretaire ad- person limping around on crutches you encounter the D'abord je peux dire que c'est beaucoup de travail. joint est automatiquement promu secretaire général. in the halls; she broke her toe. (Hosting an IA U may C'est aussi très interessant. On rencontre beaucoup de Q - Etiez-vous active dans !'organisation de 1'UAI au- pe hazardous to your health). monde, on fait beaucoup de voyages, on a une immense paravant? We were all relieved to see John back in action correspondance. Malheureusement on n'arrive plus à J'ai été presidente de la commission 46 del'enseigne- oday after he escaped from st. Mary's hospital to faire la recherche. Heureusement que j'avais des col- ment de l'astronomie pendant six ans et vice-presi- participate in the IAU . John says that he will be staying laborateurs, nous avons quand même pu faire quelques dente trois ans auparavant. t the hospital overnight, allowing the local committee publications. Je dois dire que jeudi soir prochain Q.- Est-il important de connaitre les mecanismes de o reduce its operating budget. je serai très heureuse de reprendre mon souffle et de 1'UAI avant d'accepter un poste dans !'organisati on? From all of us, John, we wish you the best, and m'eclipser pour plusieurs semaines de vacances. Les mecanismes de l'UAI sont très simples. On ales we're glad to see you won't miss all of your IAU af- statuts: tous 1es membres de l'UAI devraient 1es con- er all. naitre. Quant au reste, c'est du bon sens. By R. Racine referred by P. Hemenway. Q.-Où avez-vous fait vos etudes? Je suis née en Espagne où j'ai fait toutes mes étu- des jusqu'au Bac. Ensuite je suis allée à Zurich comme suissesse, où j'ai fait des mathematiques, de la chimie, de la physique et de l'astronomie et où j'ai obtenu mon doctorat. Ensuite j'ai travaille à l'observatoire fédéral HEUREUX DE TE REVOIR! de Zurich et j'ai enseigne les mathematiques au college de jeunes filles à Zurich pendant trois ans. J'ai passé un an à Cambridge en Angleterre et presque dix ans à Ann Harbour (Michigan). Dès la premiere journee de l' Assemblee généra1e, J'ai passé un an à l'universite de Bâle pour des histoi- John Glaspey decida, sagement (?) d'entrer à l'hopital. res de visa. Je suis retournee après les Etats-Unis à 'Surmenage'' pensions-nous; mais les experts decideront 1'universite de Genève et j'y suis depuis. plutôt qu ' il s'agissait de diabete. John et Marie Giard Q.-Que comptez-vous faire en retournant à la recher- sont 1es mem bres du comite local en charge des exhi- che? bits. Marie est celle que vous voyez deambuler dans Je voudrais continuer à étudier 1es problemes des es halls avec ses bequilles et son plâtre - orteil cas- atmospheres stellaires. Il y a beaucoup de prob1emes sé (recevoir l'UAI est dangereux!). Edith A. Muller, Secrétai- à regler et de mode1es à faire. II y a maintenant des nou- [( C'est avec plaisir que nous avons vu John de retour re général de I UAI. velles techniques pour observer dans 1'UV lointain et 1'in- à son poste aujourd'hui, s'etant échappé de 1'Hopital Photo Pierre Guzzo frarouge et il faut uti1iser ces donnees pour etudier les St-Mary's pour participer à l'UAI. John a décidé de atmospheres des etoiles. Je voudrais regarder les at- continuer à passer les nuits à 1'hopita1 - une autre façon Q.-Comment devient-on secretaire de l'UAI? mospheres stellaires dans tout le spectre electromagne- de reduire 1e budget d'hebergement du Comite local. J'ai été élue et je dois dire que cela m 'a tout à fait tique. Nous souhaitons tous à John et à Marie un prompt étonnée. Je ne m'y attendais pas du tout : il y a un comité Premièrement je voudrais lire beaucoup car ces der- rétablissement et nous sommes heureux qu'apres tout special de nomination qui consite de 7 personnes y nières annees j'ai eu très peu de temps pour etudier la vous ne manquiez pas tout le plaisir de notre UAI 1979. conipris le president et !'ancien president. Ces 7 per- litterature. Ii faut que je me rattrappe. NDER-ON TRIAL Saturday morning's round tance this object could be table-discussion rapidly just another ordinary (!) X- NOV1 JAN1 MARl moved into the joint discus- ray binary (remember the sion room to accommodate joint discussion from the last all the speakers and curious IAU general assembly?) onlookers, as a rapid-fire However this one has two succession of new data was sets of moving e- presented on SS 433. But mission lines (see diagram) + for one whose extr

+ - E I N +

+

oo

(JULIAN DAY- 2,440,000) The fingerprint of SS 433

perties indicate the presen- source and two jets 1 mil- revealed a 13.1 day period this the youngest known bi- ce of two collimated jets liarc-second wide aligned and probably binary orbit for nary source. Models have of matter travelling at a- East-West on May 12, 1979. which likely masses of the been proposed which depend bout one third of the velo - These results also indicate component bodies are both on a very rapidly spinning city of light. Their detailed the 78 line of sight in- near 1.6 solar masses. Op- pulsar on a super critically behaviour now points very clination. Distance estima- tical, infrared and radio va- accreting one. Further ob- convincingly to a double tes for the optical and ra- riability also suggest corre- servational constraints will beam precessing in 164 days dio sources and the sur- lation with this period. almost certainly bediscove- some 20o about a pole incli- rounding SNR W50 suggest a The puzzle, then, is to dis- red in the near future which ned at 78o to our line of sight distance of 3.5 kpc and thus cover why an apparently nor- may tie down or eliminate and nutating (or nodding) reinforce the position mal weak X-ray binary has these possibilities. In any through some 5 , proba- coinciderrce with W 50. such extraordinary proper- case we are assured of a bly in the same period. VLBI Optical studies of the " sta - ties. The clu es may lie in great deal of activity and ex - radio data have revealed a tionary" emission and P the coincidence with a super- citement over this presently Photo : Pierre Guzzo 3 milliarc- second point Cygni absorption lines have nova remnant which make unique phenomenon. COMMISSION 44 - FUTURE NEEDS FOR SPACE ASTRONOMY by R.M. Bonnet lready Planned Programmes Planned International Space Programmes were resented in the morning session by Eric Preytre- an from ESA and N. Roman from NASA. The Euro- ean Space Agency (to which, in fact , Canada belongs) is international per definition. and not only has a pro- ramme of its own , including COS-B and EXOSAT , o be launched in 1981. but is also engaged in very im - portant Joint Ventures with NASA like the ISEE pro- gramme, the Space Telescope. the International Sola r Polar Mission (Ex. Out cf Ecliptic Prube) and the PACELAB-1 Programme. NASA, as is well-known has offered and will continue to offer flight opportunities on board its space vehicles to many countries all around he world. Dr. Roman rewiewed the various components of e Space Astronomy programme of NASA : Copernicus the HEAO series whose last number will be launched next October, the Solar Maximum Mission (SMM) which will be the major segment oft he coordinated studies of the next Solar Maximum, the spacelab- 2 mission which will carry various types of instruments among which a small infrared telescope which will look for sources of a few degres and various US and non-US solar instruments. She also described in detail the various instuments of the space telescope and their capabilities and offered a perspective view on the space telescope and their capabilities programme, e.g. a 80 em Cryogenically Cooled Telescope, the Gamma-Ray Observatory (GRO) and the Solar Optical Telescope (SOT). Dr. R. Wilson presented the International Ultra-Violet Artist' conception of the IUE as it transmits data from synchronous orbit (Illustration courtesy of N.A .S.A. ). Explorer, a joint project between NASA , ESA and the the Sun. the Moon, the Solar System, the Galaxy or solution of 0.01 arc sec. They could in pnnc1p1e ob- UK and R. Van Duinen presented the infrared Astro- the Entire Universe. The most popular working model is serve the earliest stages of star formation and reveal the nomical Satellite built promptly by the Netherlands. that of the hot expanding Universe which has su rprisingly presence of other stellar svstems. Accurate distances th e USA and the U.K. IRAS will be launched in 1981 managed to withstand the shock of the fantastic discove- and therefore absolute luininisities can be obtained and will make an all sky survey in the far infra- red ries which have been made over the past 25 years. He from parallaxes and proper motions with high spatial between 8 and 120 mirrors. With a sensitivitv several or- then showed how, fo r the first time in history thanks to resolution. Very high spatial resolution will great !y ex- ders of magnitude large than the present systems IRAS the observations which will soon be possible from space. pand our knowledge of binary star of X-ray and ga mma will be the first hypogenically cooled telescope to be cosmology will be put on a reasonably firm observa- ray astronomy was pointed out very clearly, since it phased into orbit and is expectedtooperatefor 18 months. tional basis. by testing th e Big Bang Model from the offers the possibility observing the last stages of stel- FUTURE SPACE ASTRONOMICAL PROGRAMME first few minutes to 15 billion years later including the lar evolution: supernovae, neutron stars and black holes. Professor Leo Goldberg offered an exciting pers- formation of D and He, the observations of the reiict Prof. Goldberg concluded in showing that progress pective view of what should be the major components radiation, the formation and evolution of galaxies, of in astronomy does not follow alone from the testing of the future astronomical observations to be made stars and stellar systems, the formation of heavy ele- of theories and that surveys of the sky with new obser- from space. The first showed that the sapce Astronomy ments in stellar interiors and how to enrich the inter- vational techniques have been and still will be of ex- programme follows a sequence of three phases: Phase stellar medium through supernovae, novae and stellar treme importance. Space Astronomy also provides unique I which ended shortly after the lauch of the first Sputnik winds and the final stages of . For that opportunities to test theories of gravitation and relati- during which observations were maintly conducted from we will have telescopes giving spatial resolution below vity. space, Phase II which is just ending now during which 0.1 arc sec and operating in the X-ray, uv , optical and Are the presently planned space vehicles and transpor- relatively small instruments in earth orbiting satellites infra-red background. Gamma-ray astronomy will pro- tation systems sufficient to carry out this programme? were used, and Phase III which is about to begin and vide a unique test of the evidence that matter and an- To this question, Professor K. Pinkau brought an during which full advantage of the low sky noise and high timatter are symmetric anywhere in the Universe. affirmative answer: provided they are made cheaper spatial resolution possibilities of space observations will than they are today. The space shuttle, spacelab and the be exploited. Professor Goldberg regretted that the most One of the most exciting prospects for space astro- European ARIANE Rocket seem to present the capabi- convincing practical arguments which characterize space no my is the development of spatial interferometers for lities which are necessary to carry most of the expe- astronomy were surprisingly not sufficient to get a pro- the visible and the infra-red bands with a spatial re- ritnents and satellites envisioned in the next decade or ject approved and that the best way, in that respect, is • so. However two major concerns were expressed. to show that the project is relevant to solving the fon- One is the tendency to launch only large facilities with obviously a much lower event rate than in the past, leading to a gradual loss of expertise of the space la- boratories involved in hardware development and there- CLASSROOM PROBLEMS by to a stagnation of the capabilities of futu re experi COMMISSION 46 - MMEETING WITH CANADIAN... . rnents. The second is that in reality the cost of space by D. McNally experiments and launchers does not go down as hoped and the future may well see a gap or even a stop in As foreshadowed in METEOR no 1, commisswn 46 began early with a meeting with Canadian Teachers of space astronomy if this tendency is not reversed ra- Science in the Schools on August 13. This is the third pidly . This concern was transmitted to the whole meeting between Commission 46 and schoolteachers - community of astronomers who more and more frequen- the first two taking place at the time of the General tly make use of space astronomy data to test their Assemblies at Sydney () and Grenoble (France). models and theories. so that they be avare of the dif- One would think that a variety of cultural traditions ficulties to which are faced the so-called space astro- would provide a variety of teaching problems. It does o nd ph sicists. not. Teachers in New South Wales, France and Cana- da all want the same thing - good classroom displays, activities and information as to where to get it for less. DISCUSSION CON JO INTE There is a need to provide basic information, give guidance on buying telescopes, indicate what can be ma- de in the school workshop, what NASA can provide in SUR LES INSTAB IL ITES the way of classroom display for free and so on . This session satisfied all - or more modestly some - of this STELLAIRES demand. There was sustained interest from the teachers in all these areas. La premiere session de !'avant-midi a été consacrée surtout des généralités. La conference de M. Pac- We ended the days with some fun à la Piaget on pre- à senting concepts. This was very instructive for it high- zynski a fait mention de methodes relativement simples lighted pitfalls that occur when one does not recogmze de deceler les instabilites seculaires dans les etoiles jargon for jargon. It is all too easy to assume children Certaines de ces instabilites seculaires sont interes- see things with the same eves as their teachers. The santes pour les observations. heartiest laughs of the day came here - a good thing Mme Sackmann a parlé des instabilites qu i se mani- at the end of long day . festent dans des couches dans lesquelles un e produc- a tion d'énergie appreciable est due à la combustion de Well is it worth it? Yes, it still is - there are aD l 'hydrogene et de !'helium et où il y a des explosions too few opportunities for the professional astronomer internes qui se manifestent à la surface,. ce qui est la to meet his teacher counterpart and vice-versa; there source de phénomènes comme les nova et les nova ré- are especially few opportunities for teachers with as- currentes. tronomical interests to meet each other. The day ful- M . Iben a fait un très bel exposé sur les différentes fill ed its purpose - hopefully the astronomer left a littl phases de l'evolution stellaire auxquelles !es instabili- wiser and the teacher better informed - a good time wa tés se manifestent. Field Work Photo: Pierre Guzzo COMMISSION 29 - WORKING GROUP ON BE STARS Dr. M. Dworetsky of University Col - Some cu rrent activities at UCL : ege London wishes to hear from those Ultraviolet Astronomy A meeting of the WG will be held on ronomers planning short, greater than Stellar Spectroscopy ugust 21 , Tuesday 16th (4 p.m.) Room I dav or sabbatical visits to Britain in Stellar Atmospheres 35 . Agenda: (1) Election of the Or- 1979-80. Staff and students in our large Solar Physics ing Committee; (2) Scientific Com- very active Department are always Infrared Astronomv ations (4 or 5) , M. Jaschek (Chair- to hear about the latest work being Planet a ry Atm ospheres elsewhere. in every field . Whenever Interstellar Medium we try to arrange informal se- Star Formation (Theory & Observation) EXTRA SESSION ON SS 433 guest speakers - especially Quasars & BL Lac's from other countries. Galaxies: Dynamics, Structure Tuesday afternoon, Room F-2242. Peculiar A Stars Atomic Physics (Theory) GUESTS Planetary Nebulae, Novae If you are interested in visiting us, Upper Atmosphere Come to Room 2405 at 3.00 p.m. and please leave a note in Dr. Dworetsky's we will visit the Boutique du Congrès to- Electronography, Photometry mail box (922) giving your name, dates Instrumentation (IPCS, Ballons for IR) gether. f your visit to the UK, and the ins- titution (s) where you will be located. X-Ray Astronomy (Mullard Space Science INFORMATION PANEL i Lab.) DISCUSSION ON Ap STARS ' Several South American observatories Tuesday, 21 August, 14.30, J DAY MEETING , (Bogota , Colombia; Mérida, Venezuela; Room 3325. August 22, Room B-2305 Montevideo, Uruguay) are interested in Panelists Adelman, Bidelman, Cowley, donations of astronomical equipment in Khobhlova, Michaud, Reeves. Bohdan Paczynski "The Teaching of astronomy at the working condition but no longer in use, Audience participation is encouraged. University Level" e.g. measuring engines, spot sensitome- NOTE: The Organizing Committee for BOHD N PACZYNSKi 9.00 - 10.00 Invited Speaker: G. ters, single-channel photometers, etc . the working group (WG) on Ap stars will Packing and shipping charges can be paid. Bohdan Paczynski is the youngest of Abell . "An Overview of Astronomy E- be elected at this time. Names are pos- ducation." Please contact either J. Stock (Box 6197) ted on Commission 29 bulletin board. three invited speakers at this Assembly, or D.J. MacConnell (Box 6197) or write but he is well- known of both sides of the 10.00 - 10.45 D. McNally, "How C. Cowley. Much Mathematics?"; D. Pierce, "Com- to them at the Venezuelan National Ob- Atlantic for his theoretical work on stel- servatory: C.I.D.A., Apartado 264, Méri- FREE- GRAT UIT lar structure and evolution, and especial- munity College Astronomy"; P. Osorio, ly for his contributions to the study of "Astronomy as an Optional Subject?" da, Venezuela. Concert Classique: piano, saxophone, the evolution of members of close binary 11.00 - 11.45. Invited Speaker: H. mardi le 21 août à 18h30 au grand salon systems. He was amongst the first to Eichhorn "Teacgubg Astrometric Con- du Centre Communautaire près des ré- demonstrate by computation that mass cepts". DATA BANKS sidences. Ce concert est donné par des 11.45 - 12.15. D. McNally , "Teach- tansfer between the components of binary Commission 27 (Variable Stars) main- etudiants du module de musique de l'U. systems might indeed account for the ing Computational Methods "; S. Ferraz Q.A.M . Mello, "Undergradute Teaching of Astro- tains two data banks for unpublished pho- existence of types of systems that would toelectric observations of variable stars. A concert will be given on Tuesday, otherwise be hard to explain. nomy" ; C. Iwaniszewska, "Astronomical August 21 at 18.00 in the Grand Salon of Basis for Geography Students". Astronomers can receive copies of these Dr. Paczynski was born and educated observations by requesting certain files the Centre communautaire. The students in Poland and is on the staff of the lns- 2.00 - 2.45. Invited Speaker: J . from the Université du Québec will play Chamberlain "The Planetarium in Astro- (stars). At the moment, the two data titude of Astronomy in Warsaw. He is banks are at the Royal Astronomical So- piano and saxophone. one of the most prominent of the unu- nomy Teaching" . 2.45 - 3.30. A. Sandqvist, " A Por- ciety in Great Britain and at Odessa, ERRAT UM sually productive group of astronomers USSR (Dr. Makarenko) respectively. Full that has grown up in that country since table Planetarium"; A. Fraknoi, " Inter- displinary Approaches"; D. McNally , details on previous files and addresses Une erreur s'est glisseedans le numé- the Second World War. He has made se- for copies are given periodically in the ro de samedi du METEORE. Dans l'ar- vera! visits to other countries, including "Planetarium Teaching" . 3.45 - 4.45. C. Iwaniszewska, " Teach- Information Bulletin of Variable Stars ticle sur Jupiter il faut lire PIONEER the United States of America, and the and the Publications of the Astronomical naturellement, au lieu de VICKING. many friends he has made on these vi- ing Astrophysical Concepts"; Invited Speaker: D. Clarke "Teaching Obser- Society of the Pacific (e.g. June 1979 sits are pleased to welcome him once P.A.S.P.). again to North America, this time to vational Studies''. 4.45 - 5.15 . M. Gerbaldi, "Labora- We encourage submissions of more un- Montreal. published data . New data should be sent BOUTIQUE DU CONGRES The study of binary stars has been a tory Exercises". H. Zimmerman, Trai- ning Teachers of Astronomy" to: - ROOM 2406 tradition of Canadian astronomy, ever sin- Dr. Michel Breger The participants wishing to bring take ce the days of J .S. Plaskett. Although VISTAS IN ASTRONOMY Dept. of Astronomy souvenirs home are welcome to the Bou- the thrust of Canadian work has largely University of Texas du Congrès. We will be very hap- been observational, the ideas pionnered by Many participants in the General As- Austin, Tx 78712, USA to make some suggestions according Paczynski, among others, have stimulated sembly will already be aware that the Authors of papers on variable stars your budget. directed much of our more recent series VISTAS IN ASTRONOMY , founded can save publication costs by sending leng- . We particularly welcome a dis- over 20 years ago by Arthur of the thy tables of observations to the data bank. course on binary stars and stellar evo- Cambridge Observatories, now continues On request we can supply a file number lution at this Montreal General Assembly. as a quarterly review journal covering which can be quoted in type papers A few years ago Dr. Paczynski wrote all the principal fields of astronomy. a still-quoted review article on this same It is edited jointly by Arthur and Peter MICHIGAN SPECTR AL subject for the series "Annual Reviews of Beer, who welcome suggestions for pos- Astronomy and Astrophysics". In this he sible contributions. Delegates may like CATALOG UE demonstrated fully his ability not only to know that one of the Editors, Peter A few copies of Volume 1 and Volu- to persue hiw own work, but to stand back Beer, (No. 1261) is attending the Montreal me 2 of the Michigan Spectral Catalogue and take a broader view, summarizing Assembly , and anyone interested in mee- are available here at a cost of $18 .00 thw whole field for the rest of us . We ting him to discuss the Journal is re- (U.S .) or $20.50 (Canadian) each. These look forward tonight to hearing an upda- quested to drop him a note in his mailbox catalogues have been brought mainly for ted version of that article - for the sub- in the U.K. section. He will endeavor astronomers from countries where or- ject has developed at an astonishing pace to fit in with any suggested time and place of meeting. dering by mail is difficult due to cur- since the article was written - and are rency or other problems. If you want confident that the published version of COMMISSION 44 RENAMED one, leave a note for Nancy Houk, U. SPACE (6) the talk will also be much quited through S.A. in box 4244, proposing a meeting the years. At their second business meeting on time and place. The catalogues con- August 17 the members of Commission 44 tain MK types for 36,000 HD stars from agreed to change the name of the Com- declination -90o to -53o (Vol. I) and mission from "Astronomical Observa- There will be several 16mm films 30,000 HD stars from - 53o to -40o. tions from Outside the Terrestrial At- (Vol. 2) . shown on Wednesday, August 22 at 14.00 mosphere'' into'' Astronomy from Space''. - 17.00 in G-2215 about: "The Herz- This proposal has now to be accepted A PHOTOMETRIC ATLAS berg Institute" and "Canada" . by the Executive Committee. OF THE SPECTRUM ASTRONOMICAL DIRECTORY OF PROCYON You didn't make it as "Astronomer of the Day" in METEOR. Take your The Astronomical Directory is availa- by R. & R. Griffin picture under the giant cover of "Sky ble free at the Gall Publication booth. The authors are pleased to announce and Telescope" and be astronomer · of There are several hundreds but they are the availability at their new publication, the year instead. Bring your own came- going fast. After they're gone you can which is generally similar to the "Arctu- ra. obtain them by sending $1.00 to James rus Atlas". One of the authors has a METEORE ne vous a pas cboisi com- Gall to cover mailing charges. copy here on display each day near the me " Astronome du Jour". Devenez as- Le kiosque de Gall Publications of- cafeteria. The Procyon Atlas is being 1937-1965. A.D. The situation becomes tronome de l'annee en vous faisant pho- fre gracieusement son "Astronomical Di- distributed at cost price (30 pounds) confused as the square, the parallelogram, tographier -sous· la couverture géante de rectory". Lorsque le stock sera épuisé, Note that the Arcturus Atlas, published the nonagon and other n-gons, and their " Sky . and· Telescope". Apportez votre on peut l'obtenir en envoyant $_l.00 a Ja- in 1968, can still be ordered too (Price anti-.shapes, are discovered. propre camera.. mes Gall pour couvrir les frais d envoi 12 pounds). I AU Montréal UAI

August 22 METEOR Août 22 Number 8 Canada Numero 8

Office:- Room No . 1265 Editor :- Michael W. Ovenden Téléphone 343-5889

NGC 5273 8/ 1 L'ANORMLITE

Les participantsEST à Ia discussion NORMA con- metres Ia radiation est principalementE jointe sur les noyaux des galaxies norma- due aux etoiles de type spectral avancé les ont essentiellement passé Ia journee à et il a été suggéré que le rapport des se prouver l'un al'autrequ'aucunegalaxie luminosites à 10 et à 2 micrometres n'est parfaitement normale. Notre Voie peut être utilise pour determiner l'émis- Lactee a été scrutee à toutes les longueurs sion IR. La question est "quelle est d'onde pour observer le noyau il est pré- Ia source d'énergie qui chauffe les pous- ferable evidemment d'utiliser !'infra- sières?" M. Heckman a entretenu !'au- rouge et Ia plupart des discussions ont dience sur un nouveau type de galaxie les 4825. 5852. 5978. réflété cette tendance. La distribution de LINER (Low Ionization Nuclear Emission NGC 5273 a été classifiee SO/a par Sandage et par le catalogue RCBG 2 comme CO dans le noyau de notre galaxie est - line Region). Après toute une journee de T 2. MM. Schuur et Sherwood ont obtenu ce spectre de la région centrale à ESO. clairement anormale puisqu'elle suit Ia discussion M. Biermann conclua qu 'il Cette galaxie est tout à fait normale et pourrait done être classifiée comme Sey- forme d'un anneau, à moins que la con- reste encore énormément de problemes fert 1 d'apres son spectre. Les Seyfertpeu lumineuses se cachent peut-etre parmi centration centrale de CO observee dans dont les plus urgents sont les suivants: les galaxies "normales". les aut res galaxies sont un effet de la pié- tre resolution des telescopes millémé- LES QUESTIONS QUI NE SONT PAS triques. Les noyaux galactiques con- RESOLUES tiennent en général des poussieres qui 1. - Y-a-t-il formation d'etoiles dans les emettent de l'infra-rouge. A 2 micro- galaxies de type E et SO qui contiennent EVOlUTION STELLAIRE ET de 1' hydrogene neutre? 2. - Le type SO existe-t-il vraiment com- ETOILES BINAIRES SERRES me transition entre les types E et Sa. par M. B. Paczynski Y-a-t-il vraiment une trace d'anneau L 'evolution des etoiles binaires serrees étaiit, il y a plus d'une dizaine d'annees, un dans le gax. des plus excitants problemes de l'astrophysique. Au cours des dernieres ann ees, ce 3.-Les galaxies de SO qui contiennent de sujet a vue un regain de vitalite surtout à cause de la decouverte, par le satellite l'Hydrogene neutre sont-elles apparem- UHURU , de plusieurs sources intenses de rayons-X parmi le s binaires serrées. Cet ment confines aux régions nucleaires de intérêt est soutenu aujourd'hui par un flot continu de nouvelle decouvertes menant galaxies Sc dépouillées? des satellites SAS-3, UK-5 , ANS , IUE et , tout recemment du satellite EINSTEIN' 4.- Une elliptique qui accrete beaucoup de Professeur Paczynski croit que les .observations de ces sources ch ez les etoiles bi- materiel prendra-t-elle !'allure de M82 naires sont 1a rgement en a vance sur les théories qui essaient, a vee un succés mitigé, dans certains cas et de NGC5128 dans d' d'expliquer les nouvelles decouvertes qui s 'accumulent à un taux sans précédent. aut res? Quelques unes des caracteristiques des binaires serrées sont assez bien 5.-Les irrégulières qui perdent leur gaz comprises. Parmi celles-ci on pense à 1' interaction mutuelle des deux compo- prennent-elles l'apparence d'elliptiques? santes, à Ia perte ou au gain de masse, au rôle de Ia limite de Roche ou des ma- 6.- L'activite dans les galaxies est-el rées dans les phénomènes d'echange de matieres et à la formation de disques ga- le due à !'accretion de materiel inter- zeuz autour de la composante qui accumule la masse. Un grand nombre de bi- galactique comme c'est apparemment le naires observees peuvent s 'expliquer du moins de façon quantitative, en termes de cas dans N2146? diverses phases evolutives avec transfert de masse d'une étoile à !'autre et perte de 7-Combien de galaxies ont un halodegaz? masse par le systeme. Ainsi en est-il de systemes tels que ceux appelés RSCV Quelle est l'etendue de ce halo? WUMa, Woolf-Rayet, Algol , Beta Lyrae, etoiles symbiotiques, variables ca- 8.-Quelles est la fonction de masse ini- taclysmiques et binaires à rayons-X. Cependant plusieurs de processus physi- tiale dans les augmentations de formations ques ne sont pas bien compris. Parmi ceux-ci il faut inclure les phénomènes d'etoiles. de perte de masse et de moment angulaire, le rôle de Ia visrosite dans les disques 9.- L'accretion de gaz extra galactique d'accretion, les phénomènes de surface et atmospheriques chez les composan- ou circum galactique conduit elletoujours tes qui accumulent Ia matiere, ainsi que la structure et l'évolution de l'enve- M. Peter Biermann. à Ia formation d'etoiles et à un noyau loppe commune des systemes binaires. En fin, 1' origine des binaires, so it par ou par Photo Pierre Guzzo . compact? capture ou par tout autre mecanisme est très mal mcomprise. Un avenir très excitant attend clairement les travaux theoriques et les obser- vations des binaires serrees. Ces systemes offrent entre autres, la meilleure opportunite de decouvrir et d'etudier les etoiles à neutrons et les trous noirs, DINER DE CLOTURE les disques d'accretion et les phénomènes d'accretion en générale, ainsi que la CLOSING DINNER confirmation, par observations directes, de !'existence de rayonnement gravita- Sir Arthur Currie Gymnasium at Mc - Gymnase Sir Arthur Currie à l'Univer- tionnel. Gill University 475 Ave des Pins. sité McGill 475 Pine AVe. Transportation: Busses will leave from Transport: Les autobus partiront des the residences at 18 .15 and from the residences à 18 .15 et du Reine Elizabeth IMPORTANT NOTICE AVIS IMPORTANT Queen Elizabeth à 19.00 à I9.oo. " COMME AND HAVE FUN WITH THE "VENEZ VOUS AMUSER AVEC NOUS CHANGE IN LOCATION OF CHANGEMENT DU LIEU DE LOCAL ORGANIZERS' ' . Mercredi 19 .00 bar ouvert, buffet, gas- GENERAL ASSEMBLY L'AS .MB EE GENERA E . . Wednesday 19.00 open bar, fancy hot tronomique : pièces montées et mets The location for the closing General L'assem lee generaTe se reumra Jeudl and cold buffet. chauds et froids. Assembly on Thursday, August 23 has le 23 août à !'auditorium du pavilion Dancing International Music, Entertain- Danse: Musique internationale. Spec- been changed from A-2285 in Pavillon principal (où a eu lieu Ia session " Life ment; Quebec folk dancers and singers. tacle. Danseurs et chanteurs, folklore 3200 to the large auditorium in the Pa- in the Universe" jdudi soir) plut6t qu 'au Gifts . du Québec. Cadeaux-souvenirs, Prix villon Principal (where the evening ses- A-22285 du pavilion 3200. L'heure sera Price: $25.00 per person (all inclu- $25.00 par personne ( tout inclus). Billets sion on "Life in the Universe" was la même ( 10 .00 a.m.) ded). en vente à !'information. held). The time or the Assembly re- Ticket available at the Information Desk. Votre comité local. mains unchanged (10.00 a.m.) EDITORIAL THE CANADIAN PLANETARIUM TODAY TER OF y David A. Rodger•, Curator chine or its counterparts. This is the H.R. MacMillan Planetarium age of quasars, pulsars, and black holes, Vancouver. B.C. of questions about life in the universe and RESPONSIBILITY It started out as an engineering a- the evolution of stars and galaxies. It chievement! The Deutches Museum in is an age when men have landed on the Many astronomers think of the planetarium as just a device for producing a poor unich wanted a new astronomical ex- moon and when unmanned probes have tou- substitute of the real sky, as it can be seen from the Andes or Hawaii. They have ibit for their science section, so they ched other planets. And it is an age of the comfort of research grants to pay expenses. The sky of a remote mountain- challenged the famous optical firm of Carl mass communication when fads and falla- top is, for most people, an unattainable luxury. We should not grudge them the Zeiss J ena to design and build a model cies about astronomy arise almost daily vicarious pleasure of clean air and a star-studded sky, even if the sky is arti- niverse. Zeiss took up the challenge to titillate the fancy of the public and test ficial. nd a team of opticians and engineers the patience of the scientific communi- But there is much more to a planetarium than this. Its potentialities are at under the direction of Dr. Walter Bauers- ty. People have come to expect cla r i- last being realized, at least on the north american continent. First, of course, the- feld (1879-1959) worked on the project fication of these matters from the pla- re is the educational value of the planetarium. For teaching spherical astro- for over ten years. Finally, in August, netaria. and the planetaria have responded nomy it is ideal! Dr. J. Chamberlain and others will discuss the use of the plane- 1923, in a make-shift dome erected on with enthusiasm: The title of some of tarium in education at the meeting of Commission 46 today. It is very surprising he roof of one of the factory buildings in the recent shows presented in Canadian how little professional astronomers seem to appreciate the value of this pratical Jena, Bauersfeld and his associates un- planetaria attest to the importan ce of this aid to teaching positional astronomy. I have sat through two one-hour lectures veiled the Zeiss Projection Planetarium. role: A Journey Through the Galaxy, by an historian of astronomy, who laboriously (and ineffectually) described the e- The new machine was the legitimate suc- Unidentified Flying Objects, When Worlds quator, the ecliptic, the motions of the Sun, Moon and planets with chalk and board- cessor to a long historical line of clock- Align. Cosmic Mysteries. Astrology, the without realizing that he could bave done It all far more efficiently and effectively work planetary devices and celestial glo - Wheel of Fortunes, and New Worlds are in a quater of the time ·at the local planetarium down the road. bes, many of which may be seen today in Coming! The schools seem to have a better appreciation of the use of a planetarium. museums and private collections. But the Since the central machine is li mited For example, every year many thousands of Vancouver children visit the special major breakthrough came in the imagina- to the simulation of vis ible sky phenome- schools shows at the H.R. McMillan Planetarium (whose Director, David Rodger, tive use of optical projection techniques. na, the planetaria have had to develop contributes another article to this issue). The success of these shows depends The audience sat beneath an artificial skv other means of projection for their thea- heavily upon the personality of the planetarium lecturer. It is a joy to sit discreet- and watched as stars blinked into their tres. These include slide and motion ly at the back of the auditorium, and listen to a skilled teacher who knows children accustomed places, the moon moved picture projectors, special effects de- as well as the planetarium, to watch their wonder as every new surprise gives them through its phases, and the planets moved vices, theatrical lighting. and elaborate new understanding. And the teaching in a planetarium is not confined to astrono- along the ecliptic, pausing as they do in sound svstems. Music and effects have my. Geography is only one of many other subjects that can be treated with profit nature to describe their peculiar retro- become ·and integral part of typical plane- in the environment of the planetarium dome. grade loops. It was the ability to re- tarium shows and, in several institutions, produce planetary motions that prompted automated control systems are employed Environment - that is the key word. The planetarium is effective in a way that hem to call the machine a planetarium. to synchronize the operation of it all. no television programme can be. Television encourages a passive response to Before long, planetaria had been ins- People today are accustomed to wide- the flickering screen. Inside a planetarium dome, participation is inevitable - pro- alled in dozens of cities around the world. screen multi-million dolla r motion pictu - vided of course that something interesting is shown. It hough small planetaria were establish- re epics, colour television, and other And here we come to the matter of responsibility. A planetarium is first and ed for short periods of time in several forms of multi-media presentation. Whe- foremost a theatre - a theatre in which many different kinds of production may be anadian cities, the first major public ther they like it or not, planetaria, with undertaken, from music concerts to light shows. Even when more directly edu- lanetarium wasn't opened until 1960. It their limited budgets, fi nd th emselves in cational shows are being produced, they are failures if people do not come! The as the Queen Elizabeth Planetarium in comoetition with the oth er media of com- empty planetarium is as sad a sight as an empty theatre - or an empty park. To pro- dmonton, Alberta. However, within eight munication. Wisely. they have decided to duce educational shows on astronomy that are effective with the general public re- ears of that opening, planetaria were in concentrate on those topics and methods quires a combination of the talents of the professional producer with those of the peration in Montreal, Calgary, Winnipeg, of communication that make them unique. professional astronomer. Only when this cooperation is complete, with mutual oronto and Vancouver. The planetarium is a marvellous environ- respect on each side for the talents ofthe other, can the results be both educational By this time, the word "planetarium" mental simulator . No motion picture has and exciting. ad acquired a new and wider meaning. ever created the effect of being out be- For the fact is that not all professional astronomers are good at communicat- o longer is it restricted to the defi- neath a starry mighttime sky, for instan- ing with the general public. Yet the support of the general public for the endea- ition of a machine. The word "plane- ce. The planetarium remains the only vours of a 'useless' subject like astronomy is increasingly vital at a time when the arium" has come to stand for a cultu- place where people can look above, be- pressures are on again for 'mission-oriented' research. It is, in the end, a matter al and educational institution where as- hind, in front of, and around themsel- of responsibility to the public who pay the salaries of astronomers. There are ronomical information is communicated ves and feel that they are truly on ano- many ways of fulfilling these responsibilities. There is, first and foremost, to do or the enjoyment of both students and the ther planet, inside an observatory, and tra- valuable and interesting research, and teach ones students how to criticize it. eneral public. Moreover, few planetaria velling through space. Books may be written, and lectures given for departments of university extension. re content to deal only with the visible For a variety of reasons, exchanges of But as professional astronomers, we would be very unwise to fail to enlist the henomena of the night time sky, which shows amongst planetaria have been slow talents of professional communicators in our cause. At its best, the planetarium hey would have to if they were restric- to develop. Technical facilities differ can be a true public relations arm of astronomy. sufficiently to present a major obstacle. Another factor is the natural tendency to relate a particular topic to the local si- tuation in the planetarium's own locale. Nonetheless, exchanges of ideas and in- formation take place constantly. The Pla- netarium Association of Canada was found- LE PLANETARIUM DOW ed in Montreal in 1966 to enable such exchanges to take place, and since that time, through regular conferences and DE LA VILLE DE MONTREAL North star. the journal of the Associa- tion, close contact between Canadians in the planetarium field and their associa- Inaugure officiellement le premier a- tes in other countries has been maintain- vril 1966, s'inscrit dans !a grande chai- ed. Most planetarium staff belong to a ne internationale des planetariums ma- variety of astronomical organizations. jeurs publics avec son planetaire Zeiss such as the Royal Astronomical Society of Mark V, son dôme-écran de 20 metres Canada, and they regard their contacts et sa salle de 400 sieges. Premier plan éta- with professional astronomers as an inva- rium majeur canadien à ouvrir ses por- luable s0u rce of material and ideas for tes au public, il demeure Ie seul plané- show production. tarium au Quebec, implante au coeur de In the years ahead, planetaria in Ca- la francophonie canadienne et américai- nada will continue to broaden their hori- ne du nord-est. Sa caracteristique essen- zons in an effort to reach even wider tielle: présenter ses spectacles régu- audiences. Astronomy is unique among liers et scolaires par des représenta- the sciences in havmg this outlet for tion d'environ une heure commentees en the explanation of its concepts in terms alternance soit en français, soit en an - that can be understood and enjoyed by lar- glais, par des conferenciers sur place ge numbers of people. Through the me- (seuls les extraits musicaux sont enre- dium of the Planetanum the astronomer gistres sur bande magnetique). and the general public come into con- tact with one another. Thus the Planeta- riurr: is more than just a showcase for LE PLANET ARIUM DOW DE LA VIL - astronomical knowledge. It is a vital LE DE MONTREA L entièrement dévoué à link between the peolple who conduct fun- la population de 1'astronomie (éducation damental research and those who pay for populaire et collaboration, à l'enseigne- it. It is a link that the peolple who work ment), a reçu à date plus de 2.500.000 in plan etaria will continue to nurture and de spectateurs \ 60% de francophones dont protect in th e years to come. 1.350,000 étaient âgés de 17 ans et moins. J President-elect *David Rodger is of the Le Planetarium Dow ternational Plane rium ciet . V.I.P.' EOPLE ON THE MOVE

Gilles Beaudet Chairman Madeleine Bergevin Huguette Local Organizing Vice-Chairman Gu ilbault Committee and Local Organizing Executive Vice-Chairman, Committee and Secretary National Secretary of the Local Organizing National Organizing Organizing Committee / Committee Committee. You'r lucky I' m still alive! But it's really not too bad. One of the worst things is that I've missed the meeti ng - I haven't been able to go to a single It 's five years since Gilles asked me to organize 1 used to be administrative secretary for theM edical scientific session. One of these days, I'll learn what 's this meeting with him and I accepted. I don 't regret Board at Not re-Dame Hospital until I saw a notice been going on in Montreal; in fact METEOR has been it a.t all, it's the best experience I' ve had so far. The in th e newpaper advertising this job and alth ough my best suource of information. pressure of the last few months has been hard but I didn't know exa ctly what is was, I was delighted The biggest problem has been to predict how many many interesting things have happened. I have met wh en I got it. It has been very different experi- people will come to a meeting in any one place. all sorts of people during that time from broom- ence, no two days have been the same, there have For example, there have been more people at the makers to Nobel Prize winners. been so many different things to do: reservations invited discourses that in previous assemblies, pro- As administrative assistant in the department of supervision of correspond ence, registration. contacts bably because there are less guest.and mo re members physics here I had had some experience organizing with artiSts to set us and so on . than in previous assemblies. still, it does mean seminars in the physics department but they were The first two da ys we re the most important : we functions are well-attended. smaller groups - there's a lot of difference bel- felt that if the first week went well ev erything would An early problem was with the long lines at the ween 600 and 2,500 people - it 's the difference bet- be al n ght and the troubles th at we might hav e cafete ria. But it was easily solved by putting extra ween 600 and 2,500 problems. But I think it would had would be past. personnel to direct the traffic. Another problem arose be very hard for some one who has never don e For a first meeting, this one was large' I had ne- with the buses for the " Life in the Universe" evening anything like that to help organize, as a first expe- ver worked at the University of Mont r eal and there We took the late-night busses and used them , though rience, a meeting like this because you think of de- are so many services and different departments I'm afraid people waiting for the late-night shuttle tails when you 've done it before that no one else here that it takes quite a long time to get to know that night must have waited a long time! But better can think of. each job, each person, - to be able to reach the to have 25 people complain than 400 . I suppose you The first three days were the worst, I was sea- one you need at a particular time. Gilles, Made- could that even if we make a mistake we have red stiff, but after that it seemed fin e. One of the leine and J worked very closely together to cover to make it with a smile! most tiring things was having to deal with ser- everything that needed to be done. vices, to Canada to get the IAU telephones li- One thing I'd like to say is that the participants nes onto the emergency list. are really kind , they have been very patient and It's been a great experience. If I were asked a- understanding. It's really been fantastic, I like the gain at this stage to organize the next IAU meeting, job very much . When it ends I've decided to try to ABSENT FRIEND I'd agree with hesitation - it would be much fmd another job with an association that has a mee- Did you wonder what Hal- ton Arp Would have said at Joint Discussion no . 8 on Monday afternoon? "We see several groups of McGILL HIER ET AUJOURD'HUI quasars, any number from 5 to 10, grouped together in En 1813 , !'honorable James McGill- leguait une sommede one region of sky, usually around a bright galaxy. They 10,000 livres et Ies 46 acres de son domaine de Burnside, condition qu'on y élevât un college. Ce fut !'initiative look as if they are associa- Halton Arp Adressing J .D.8 à ted and when one measures qui poussa le roi Georges IV à fonder McGill College par the redshifts one finds they the same distance. This is Ia charte de 1821. Mais l 'ouverture officielle de McGill have similarities, thus rein- just one example, there are ne se fit qu'en 1829, lorsque fut créée la faculte de méde- forcing the idea that they many others. cine. Le premier diplôme de McGill fut un medecin, Wil- are associated. One is led to the conclusion liam Logie qui reçut son diplome en 1833, puis partir pour There are the published that they have been ejected la Louisiane; on peut encore voir sa tombe à Geneva , dans groups. such as the 6 qua- from the parent galaxy. The l'Etat de New York. sars across NGC3384 and only other conventional in- the 3 right in the disc of terpretation is that they are A ses debuts , McGill College connait de graves diffi- the spiral galaxy NGC1073. aggregates of matter at huge cultés financieres. Quoique l 'enseignement y eût déjà One of the new observations distances in the universe, commence, la faculte des arts ne fut etablie officielle- is a group of 10 quasars much larger than super. lus- ment qu ' en 1845 . En 1855 , on dut vendre une grand e pa r- around a companion to NGC ters. But in that case vou tie du domaine pour faire face à des embarras finan ciers. 2639 . Thev have redshifts have to explain the apparent C'est cette année-là cependant que le sort de McGill s'a- whi ch resemble each other association with nearby ga- meliora grâce au nouveau recteur, William . Réa- and pair across the galaxy laxies as accidental. I feel liste et energique aussi bien qu'humaniste, tel était "l'hom- there is still strong evidence me qui a fait McGill" . II sub obtenir l 'aide de nombreux for example, . 303 on one side La bibliothèque McLennan de 1'Université McGill. of the companion and .305 that quasars are quite close bienfaiteurs; il fut l'instigateur de l'activite educative fl o- by ' ' . ont the other side at about rissante de McGilL De grands noms jalonnent les étapes Photo: Pierre Guzzo. du développement de McGill: Osler, Rutherford Leacock Penfield. Scott. Hebb, McLennan... ' ' McGill se consacre au progrès des connaissances hu- PIERRETTE LEMIEUX-PILON maines autant qu'à l'enseignement. C'est à ses chercheurs que 1' Université do it une bonne part de sa reputation mon- "LA DAME DE LA BOUTIQUE" diale; les recherches portent sur tous les domaines: mé- Madame Lem ieux- P1lon est propriétaire d'un magasin a choisi malgré sa gorsseur car elle la trouve extra- decine, sciences, humanités ou sciences sociales. L'admi- nistration de la recherche a confiée la faculté des d'art et de décoration, elle s'occupe du côté galerie. ordinaire. La boutique tient des émaux sur cuivre de été à études avancées et de la recherche, fondée en 1922. elle a spécialement sélectionné pour les membres du con- la céramique, des catalognes, des comies pointes, le grès des pièces uniquement québécoises en pensant aux tout dans la plus pure tradition québécoise. Quelques McGill est situee en plein coeur de Montréal. étrangers qu i doivent tout rapporter dans leurs bagages. pièces ont été tissees par Mme Lemieux-Pilon qui pos - Dynamisme, diversité, tolérance, la ville offre aux étu Les pièces s'échelonnent entre $2.00 et $2,500. Cette sède un atelier de tis sage. diants !'illustration de ce qu'ils apprennent dans ies sall derniere est une magnifique sculpture exquimaude qu elle de cours de McGill. (Bureau de l'Information de l'Université McGill). 's Toda y Even ts/ les Événements du Jour BULLETINS

DON, T FORGET TONIGHT'S The Latin American astronomers are invited to Bureau International d'information su r les ephémé- meet on Wednesday, 22 August, at 16 .00 (4 p.m .) in rides astronomiques (B.I.I.E.A.). CLOSING DINNER (See page 1) room 32 90 to discuss the possibilitY of the creati on (Internat ional Information Bureau on Astronomical of a Lati n American astronomical journal. Ephemerides) N'OUBLIEZ PAS! CE SOIR This Bureau created at the Brighton General As- WHAT IS EXCHANGE OF ASTRONOMERS ? sembly of lA U sends, free of charge, information LE DINER DE CLOTURE (Voir page 1) .. Exchange of Astronomers" is an IAU project ad- ca rds on where and how to obta in ephemerides of ministered by Commission 38 . the bodies of the solar system (excluding Comets) and astrometric star catalogues in machine reada- COMMISSION 40 - MEETING ON Funds are available to assist astronomers to visit ble form or otherwise. 22, institutions in another country. Write to the director at the follo2ing address: WEDNESDAY'AUGUST Room 2245 B. Morando a) 9.00 - 10.30. Business meeting, H. van der The principal criterion is the anticipated benefit B.I.I.E.A. Laan in the chair. to astronomy as a result of the stay abroad. 77 Avenue Denfert- Rochereau b) 11.00 - 12.45. Status and prospects of radio 75014 Paris observatories, G. Swarup in the chair. Simply write to the President of Commission 39 at FRANCE B. Anderson: Multi-telescope radio-linked inter- the address below. Give full information about your ferometer at Jodvell Bank. proposed visit and arrange for supporting letters from THE GENERAL CATALOGUE K. Turner: New Arecibo Interferometer. the home and host institutions. OF VARIABLE STARS D. Hogg: The Very Large Array. N.S. Kardashev: Cosmic Space Radio Telescope Commission 38, International Astronomical Union With the death of Professor B.V. Kukarkin, work (New 10 m antenna in space). Observatoire de Paris on the fourth edition of the Catalogue is being conti- R. Strom: The Westerbork Synthesis Radio Teles- 61, av. de l'Observatoire nued under the direction of Dr. P.N. Kholopoy. cope. PARIS 75014 FRANCE Dr. Kholopov reports that the new catalogue of sus- T. Hewish: The Cambridge 150 MHz radio teles- pected variables is now nearing completion. Contain- cope. ing 14811 objects it is due to be published next year B. Mills: From Lolongolo Cross to M.O.S .T. and its magnetic tape version sent to the Data Centre G. Swarup: Ooty Synthesis Radio Telescope. G. Nicholson: Radio Flares in Cir X-1. at St rasbo urg. R. Wiebelenski: Effelsberg 100 m. R. Roger: Broad HI Shells on the Periphery of. Changes in the Fourth General Catalogue will in- Yu. Parijskij: The present and future of Ratton Extented HII Regions. elude the use of 1950.0 coordinates the abolition of the 600. R.D. Davis: Possible HI Detection of Nearly Pro- RRs class of variables (most of which will now be J. Baars: French-German mm-wave facilities - togalaxies. Radio Observations at 408 MHz of a designated as delta Scuti stars), and the listing of IRAM. rotating variables such as alpha-2 Canis Venaticorum M. Morimoto: Japanese Radio Telescope. Sample of Spiral Galaxies. and BY Draconis stars as well as optical pulsars. G. Westerhout: U.S. Naval Observatory: the 35 km L. Dressel: The Arecibo Survey of E and SO Ga- Dr. Kholopov invites comments as to whether the interferometer at Green Bank as an astronometry ins- laxies. older classification of eclipsing variables Algols, beta trument. D. Walsh: The Double Quasar - A Gravitational Lyraes, and W Ursa Majoris stars should be replaced G. Nicholson: Hartebeesthoek Radio Observatory. Lens. by or appear with their more recent classification as D. McLean Culgoora Synthesis telescope. W. van Breugel: Multiwavelength Polarimetry of detached, semi-detached, and contact binaries. G. Smolkov: Siberia Solar Radio Telescope. 3C 310 and 3C 465 · J .D. Fernie P. Wilkinson: VLBI of 3C 380. Galt: Penticton Observatory. T. Kiang: QuasarswithResolvedRadioComponents. "The Atlas of Ultraviolet Stellar Spectra" (Publi- (c) and (d). T.K. Menon: Correlation of Central Components cation of the Astronomy and Astrophysics department 14.00 - 15.00: Short communications, K.I. Keller- to Control Structure. of Liège and the Observatoire de Strasbourg) is now mann in the chair. R. Ekers: Radio Jet in Cen A and the Precessing available on " Microfiche". 16·00 - 17.30. Beam Model of Radio Sources. This atlas contains the spectra (absolute flux) of M. Kundu: Solar Observations with the WSRT and J . Colv in: Plasma Turbulence Model of QSO 's 52 normal and non-normal stars and illustrates a two the VLA . H. Greybear: Theoretical Model for Cosmic Radio dimensional spectral classification system established I. de Pater: Jovian Polarimetry with the WSRT at Sources. for the ultraviolet 1350-2740A region. It is based 21 em. upon the material provided by the 32/ 68 experiment on D. Downes: Observations with the Bonn 100 m Te- boa rd the TDlA experiment. For more information. There will several 16 mm films shown on Wednes- Iescope a t 7 rnm. please contact: A. Cucchiaro No . 321 or C. Jascheck E. E. Baart: Sensitive Large Area Surveys at 2.3 day , August 22 at 14.00- 17 .00 in G-2215 about : " The No . 1506. GHz. Herzberg Institute" and "Canada". T. Wilson: Recombination Line Survey made with Welcome to everybody. 408 MHz - ALLSKY SURVEY the Bonn 100 m Telescope. M. Walmsley: The New 1720 MHz OH outburst Films sur le Canada, mercredi, 22aout 14h30- 17h00 The survey is available both pictorially and on in V 1057 Cyg . Salle G-2215 . Bienvenue à tous. computer tape. The software to select areas from the tape and transform them to convenient coordinate sys- tems comes from the NOD 2 programming system which is finding application at a number observatories and used for most spectral ranges. Enquiries should be addressed to G. Haslam, Max-Planck - Institut THE WORK OF THE RESOLUTIONS fur Radioastronomie - Bonn. Des photos du diner de clôture seront disponibles jeudi avant-midi au Pavillon Principal. Pictures taken at the closing dinner will be avai- The Commissions have given birthCOMMITTEE prolifically to ference (WARC) will allocate radio frequencies which lable on Thursday morning in the Pavillon PrincipaL Resolutions in great variey. The Resolutions Com- can be expected to remain in force for about 20 years; mittee has decided to select those that for special Recommends that administrations adhering to the In order to accomodate the Report of the Resolutions reasons require full coordination and approval by the lA U, present at the WARC, recognize the following Committee, the answers to the weekend diversion lA U, and to present separately those that are the con- needs of the radio astronomy service: have been postponed to Issue #9. cern of individual commissions or groups of commis- 1. The acquisition andjor maintenance of fre- sions. quency bands with bandwidths of a least 1-2 per cent METEOR has kindly agreed to print a special sup- at approximately octave intervals throughout the ra- plement sheet to Thursday's edition, which will con- dio spectrum. tain the second category of commission resolutions. 2. The acquisition andjor maintenance of narro- WATCH THIS SPACE (7) The following resolutions are proposed for adoption by wer bands at frequencies of the astrophysically most the IAU: important spectral lines having bandwidths appropria- l. The General Assembly, noting the support of te to the scientific investigation. Commissions 4, 7, 8, 19, 20, 25, 26, 33, 36, 37 and 45 3. The preservation of these frequency bands free is asked to adopt the following resolution by Commis- of harmful interference from in-band, band-edge, and sion 24: out-of-band transmissions. The IAU strongly supports the independent and com- The International Astronomical Union considering: plementary astrometric programmes proposed for the a. The imaginative proposal by several develop- ESA Astronometry Satellite and the NASA Space Te- ing countries to construct and operate, in collabora- lescope. tion, a Giant Equatorial Radio Telescope (GERT) in 2. The General Assembly is asked to adopt the Africa, near the equator; following resolutions by Commission 40: b. the ability of GERT, operated at meter wave- The International Astronomical Union considering: lengths, to provide high quality data as essential a. The value to mankind of the scientific results complement to data obtained elsewhere at em wave- achieved by radio astronomy through the exploration lengths; of the universe; c. the noteworthy utilization of an equatorial lo- b. the increasing use of the radio spectrum espe- cation for obtaining high resolution and sensitivity; cially by space and air-borne transmitters; d. the educational, technological and social bene- c. that the CCIR had specified the levels of harm- fits expected for the collaborating nations involved in ful radio interference in CCIR Report 224-4; participation at the research front of astronomy and 1968 A. D. Order is re-introduced by the hypothe- d. that the CCIR and IUCAF have summarized space science; sis of the Semi-demi-hemi-triangle as the funda- the needs of the radio astronomy service in their Recommends that the ICSU take steps to secure mental unit out of which the Universe is built. Ten various reports and documents; UNESCO support for the realization of the Giant E- years later, it was discovered, and thought to be e. that the 1979 World Administrative Radio Con- quatorial Radio Telescope. indivisible. Three years later it was split. 1979 IAU Montréal UAI 1979

August 23 METEORE Août 23 Number 9 Canada Numéro 9

Office:- Room No . 1265 Editor:- Michael W . Ovenden Téléphone 3 43-58 89 SPECIAL RESOLUTION

Veuillez noter: Le texte des propositions a étéSUPPLEMENT imprime à la demande du Prési- Please note: Tbe texts of resolutions are printed for your convenience at the dent du Comite des Propositions, mais Ia version qui apparaît n'a pas été vérifiée par request of the Chairman of tbe Resolutions Committee, but the printed version bas le Secrétariat de l'UAI. not been cbected by tbe IAU secretariat. LE COMITE DES PROPOSITIONS PRESENTE LES PROPOSITIONS SUIVANTES: THE RESOLUTION COMMITTEE PRESENTS THE FOLLOWING PROPOSALS:

l. Considerant I'appui des Commissions 4, 7,8, 19, 20, 25,26, 33, 36, 37 et 45, I. The General Assembly, noting the support of Commission 4, 7, 8, 19, 20, on demande à 1' Assemblee générale d'adopter Ia proposition suivante proposee par 25, 26, 33, 36, 37 and 45, is asked to adopt the following resolution by Commis- la Commission 24: sion 24: a. L'UAI appuie fermement les programmes independants et complementaires The IAU strongly supports the independent and complementary astrometric d'astrometrie proposes pour Ie "ESA Astrometry Satellite" et Ie "Space Telescope programmes proposed for the ESA Astronometry Satellite and the NASA Space de la NASA". Telescope. 2. On demande à 1' Assemblee générale d'adopter les propositions suivantes de la 2. The General Assembly is asked to adopt the following resolutions by Com- Commission 40: mission 40 : · (I) L'Union Astronomique Internationale, considerant: · (I) The International Astronomical Union a. La valeur inestimable pour I'humanite des resultats scientifiques obtenus grâce Considering à !'exploration de l'Univers par Ia radio-astronomie; a) The value to mankind of the scientific results achieved by radio astronomy b. !'augmentation de !'utilisation du spectre radio tout particulierement par des through the exploration of the universe; transmetteurs dans l'espace et dans les airs; b) the increasing use of the radio spectrum, especially by space and air-borne c. que le ccm a spécifié les niveaux nuisibles des interferences radio dans le transmitters; rapport cern 224-4; c) that the CCIR has specified the levels of harmful radio interference in cern d. que le CCIR et le IUCAF ont résumé les besoins de Ia radio astronomie dans divers Report 224-4; documents et rapports; d) that the ccm and IUCAF have summarized the needs of the radio astro- e. que le World Administrative Radio Conference (WARC) 1979 allouera des fré- nomy service in their various reports and documents ; quences qui resteront en vigueur pour environ 20 ans; e) that the 1979 World Administrative Radio Conference (WARC) will allo- propose que les organismes adherant à l'UAI et assistant au WARC reconnaissent cate radio frequencies which can be expected to remain in force for about 20 years; les besoins suivants de la radio astronomie: Recommends that administrations adhering to the IAU, present at the WARC, I) L'acquisition etjou le maintien des bandes de frequence ayant une largeur de recognize the following needs of the radio astronomy service: bande d'au moins 1-2 pour cent et situés approximativement à des invervalles d'un 1) The acquisition and for maintenance of frequency bands with bandwidhs octave à travers le spectre radio. of at least 1-2 per cent at approximately octave intervals throughout the radio 2) L'acquisition etjou le maintien de bandes plus etroites à des frequences qui spectrum. correspondent aux raies les plus importantes du point de vue de l'astrophysique. 2) The acquisition andjor maintenance of narrower bands at frequencies of the La largeur de ces bandes conviendra à Ia recherche scientifique. astrophysically most important spectral lines having bandwidths appropriate to 3) La conservation de ces bandes de frequence libre d'interference nuisibles pro- the scientific investigation. venant de trois missions dans Ia bande, du bord de la bande et d'en dehors de Ia bande. 3) The preservation of these frequency bands free of harmful interference from · (II) L'Union Astronomique Internationale considerant: in-band, band-edge, and out-of-band transmissions. a. La proposition imaginative présentée par plusieurs pays en voie de developpe- · (II) The International Astronomical Union ment, de construire et de gérer, en collaboration, un radio telescope equatorial géant Considering (GERT) en Afrique près de l'equateur; a) The imaginative proposal by several developing countries to construct and b. l' habilete de GERT fonctionnant aux longueurs d'onde métrique, de produire des operate, in collaboration, a Giant Equatorial Radio Telescope (GERT) in Africa, donnees de haute qualite comme complement essentiel aux donnees centimetriques near the equator; obtenues ailleurs; b) the ability of GERT, operated at meter wavelengths, to provide high quali- c. 1a remarquable utilisation d'un site près de l'equateur pour obtenir une grande ré- ty data as essential complement to data obtained elsewhere at em wavelengths; solution et sensibilite; . c) the noteworthy utilisation of an equatorial location for obtaining high reso- d. les bénéfices, éducationnels, technologiques et sociaux qui resulteront de Ia colla- lution and sensitivity; boration entre les pays participant à des recherches de pointe en astronomie et en d) the educational, technological and social benefits expected for the colla- science spatiale; borating. nations involved in participation at the research front of astronomy and recommande que le ICSV entreprenne des demarches pour obtenir de l'UNESCO un space science; appui pour realiser le Giant Equatorial Radio Telescope. .Recommends that the ISCU take steps to secure UNESCO support for the reali- sation of the Giant Equatorial Radio Telescope. LE COMITE DES PROPOSITIONS DEMANDE A L'ASSEMBLEE GENERALE D'AP- THE RESOLUTION COMMITTEE INVITES THE GENERAL ASSEMBLY TO AP- PROUVER LES CHANGEMENTS SUIVANTS DES NOMS DE COMMISSIONS: PROVE THE FOLLOWING PROPOSALS FOR CHANGES IN THE NAMES OF COM- Commission 5 de "Documentation" à "Documentation et donnees astronomiques". MISSIONS: Commission 14 de "Données Spectroscopiques Fondamentales" à "Données Atomi- ques et Moléculaires" Comm. 5 from Documentation to Documentation and Astronomical Data Commission 30 de "Vitesses Radiales" à "Vitesses Radiales Stellaires". Comm. 14 from Fundamental Spectroscopic Data to Atomic and Molecular Data Commission 44 de "Observations Astronomiques au-dehors de 1' Atmosphere Terres- Comm . 30 from Radial Velocities to stellar Radial Velocities tre" à " Astronomie à partir de l'Espace". Comm . 44 from Astronomical Observations from Outside the Terrestrial Atmos- Commission 45 de "Classifications Spectrales et Indices de Couleur à Plusieurs ban- phere to Astronomy from Space. des" à "Classification Stellaire". Comm . 45 from Spectral Classification and Multiband to . Le Comité des propositions presente Ia proposition suivante venant des commissions The Resolution Commitee presents the following proposal from Commissions 16 et 17: 16 and 17: Les commissions 16 et 17 recommandent que la commission 16 (Etude Physique Commissions 16 and 17 recommend that Commission 16 (Physical Study of des Planetes et Satellites) et Commission 17 (La Lune) devraient être fusionnees Planets and Satellites) and Commission 17 (The Moon) should be merged to form pour former une nouvelle Commission gardant le nom et le numéro de la Commis- a new Commission, retaining the title and number of Commission 16 . sion 16.

LE COMITE DES PROPOSITIONS DEMANDE A L' ASSEMBLEE GENERALE DE THE RESOLUTIONS COMMITTEE INVITES THE GENERAL ASSEMBLY TO TAKE PRENDRE NOTE DES PROPOSITIONS DES COMMISSIONS: NOTE OF THE FOLLOWING RESOLUTIONS OF COMMISSIONS:

COMMISSION 4 COMMISSION 4 Reconoaissant Recognizing (a) that timings of occulations of stars by the Moon will continue to be of value a) Que le chronometrage des occultations d'etoiles par la lune continuera d'être in studies of the lunar motion and figure, the rotation of the Earth, and the stellar utile pour les etudes du mouvement et de la forme de la lune, de la rotation de la reference frame, and terre, et pour le système de référence stellaire, et (b) that it is desirable that the observations should continue to be collected and b) Qu'il est préférable que les observations soient collectees et analysees processed by one organization. par un organisme Considering Considérant that beginning with January 1981, HM Nautical Almanac Office, Royal Green- wich Observatory, will no longer be able to act as the international centre for the Qu'à partir de janvier 1981 le HM Nautical Almanac Omce, Royal Greenwich Ob- receipt and processing of timings of occulations, servatory, ne sera plus capable d'agir comme centre international pour recueillir et analyser les chronometrages d'occultations. Recommends that an organization with the appropriate experience and commitment to the Recommande: occultation programme be requested to take over this important work. Commission 4 expresses its full support in favour of the proposal of the Space Qu'un organisme ayant l'expérience appropriee et engagé dans un programme Research Center of the Polish Academy of Sciences, and the Smithsonian Astro- d'occultations soit prié de prendre charge de ce travail important. physical Observatory to convene the Second International Colloquium on Reference La Commission 4 appuie- energiquement la proposition du Centre de recherche Systems for Earth Dynamics. spatiale de l'academie des sciences de Pologne et du Smithsonian Astrophysical Observatory de convoquer le "Second International Colloquium on Reference Sys- COMMISSION 4 tems for Earth Dynamics". Commission 4 endorses the recommendations given in the Report of the Working COMMISSION 4 Group on Nutation, as set out below, and recommends that they shall be used in the national and international ephemerides for the years 1984 onwards, and in all other La Commission 4 appuie les recommandations présentées dans le rapport du Grou- relevant astronomical work. pe de Travail sur la Nutation , decrites ci-dessous, et recommande qu'elles soient uti- lisées dans les éphémérides nationaux et mternahonaux a parhr de 1984 et dans Recommendations of the Working Group on Nutation taus les autres travaux astronomiques pertinents . Whereas, the complete theory of the general nutational motion of the Earth about its center of mass may be described by the sum of two components, astronomical Recommandations du Groupe de Travail sur Ia Nutation nutation, commonly referred to as nutation, which is motion with respect to a space-fixed coordinate system, and polar motion, which is motion with respect Considérant que la t.heorie complete du mouvement général de nutation de la terre to a body-fixed coordinate system, it is recommended that: par rapport à son centre de masse peut être décrit par la somme de deux composan- a) astronomical nutation be computed for the "Celestial Reference Pole" using tes; la nutation astronomique, généralement appelee nutation , qui est un mouvement a non-rigid model of the Earth such that there are no quasi-periodic diurnal motions par rapport à un systeme de coordonnees fixe dans l'espace, et le mouvement du pole of this celestial pole with respect to either space-fixed or body-fixed coordinates, qui est un mouvement par rapport à un systeme de coordonnees fixe par rapport au which can be calculated from torques external to the Earth and its atmosphere. corps, il est recommande que: b) the numerical values given in Table 1 of the complete report be used for a) la nutation astronomique soit calculee pour le "Celestial Reference Pole" en uti- computing astronomical nutation of the "Celestial Reference Pole" . lisant un modele non rigide de la terre de telles sorte qu'il n'y ait pas de mouvements diurnes quasi- périodiques du pole celeste par rapport aux systèmes de coordonnées fixe dans l'espace et fixe par rapport au corps. Ce modele peut-etre calcule a partir des torques externes à la terre et son atmosphere; . . b) les valeurs numeriques donnees dans le tableau I du rapport complet soient utili- sées pour calculer la nutation astronomique du "Celestial Reference Pole".

Les Commissions 15, 20, 21, et 22 COMMISSIONS 15, 20, 21 and 22

reconoaissant la grande importance des co mètes dans l'étude de l'origine et de l'é- Recognizing . . . volution du systeme solaire en général, et des particules solides de matiere interpla- the major singificance of comets for the study of the origin and evolutwn of netaire en particulier, the solar system in general and the inter-planetary solid material in particular, remarquant la diversite extreme des cometes individuelles quant à leur composi- tion, leur structure et leur comportement physique, etc Noting admettant que les observations à partir de la suface terrestre sont généralement the extreme diversity among individual comets in terms of composition, struc- inadequates pour etablir sans ambiguite les relations entre les cometes et les autres ture, and physical behavior, and objets du systeme solaire recommandant qu'un rigoureux programme d'exploration spatiale des cometes soit Conceding . . . . mis sur pied. Afin d'assurer le maximum de retombees scientifiques, le programme that ground-based observations are largely Inadequate for establishing uneqUI- devrait viser plus d'une comete, et devrait comprendre des missions de passage, de vocally the nature of the relationship between comets and other objects in the solar rendez-vous et, eventuellement, d'echantillonnage et de retour du materieL La mis- system, sion de rendez-vous avec PjTemple 2 en 1988, avec un passage, en route, près de PjHalley en 1985 , que la NASA contemple actuellement, est considérée comme un Recommend premier pas idéal dans ce programme. that a vigorous program of space exploration of comets be initiated. To insure the maximum science return, the program should include more than one comet and should include flyby , rendez-vous and, ultimately, sample-return m1sswns. A ren- dezvous mission to PjTemple 2 in 1988 with an en route flyby of P/Halley m 1985 , currencly considered by NASA, is regarded as an Ideal f1rst step in the program.

COMMISSION 10 COMMISSION 10 La Commission 10, reconnaissant que la mesure de flux solaire à 2800 MHz Commission 10, recognizing that the 2800 MHz solar flux provides a standard fournit un indice standard et quantitatif de l'activite solaire, indice utile aux études quantitative index of solar activity for use in solar and solar-terrestrial studies. du solei! et des relations terre-solei! Recommends that those institutions making such measurements should continue recommande que les institutions qui font ces mesures continuent leur travail en to do so . ce sens. COMMISSION 10 attendu que le "Quaterly Bulletin of Solar Activity" a, depuis plusieurs annees, COMMISSION 10 fourni un important service de compte-rendu à la communaute scientifique interna- recognizing: tionale. · That the Quarterly Bulletin of Solar Activity has for many years provided a Que ce service est toujours important pour les travaux des Commissions 10, 12, valuable reporting service to the international scientific community; 40, 44 et 49 de l'UAI. · That this service continues to be relevant to the activities of Commission Que le maintien de ce service sera particulierement important au cours de l' Année 10, 12 , 40, 44 and 49 o! the IAU; · That the continuation of this service will be of particular value during the du maximum solaire qui vient coming Solar Maximum Year; La Commission 10 recoinmande Que l'UAI supporte le "Quarterly Bulletin of Solar Activity" pour assurer que ce Recommends that the IAU support the Quarterly bulletin of Solar Activity to as- service demeure disponible à l'avenir. sure that this service continues into the fut ure. COMMISSION 10 COMMISSION 10 La Commission 10, reconnaissant que Ia longue sene de comptes relatifs de taches solaires a été un indice unique à l'activite solaire dans le passe, Commission 10, recognizing that the long series of relative sunspot numbers recommande que toutes les institutions qui ont démontré leur intérêt et leur com- is a unique link with the course of solar activity in the past. petence dans !'obtention des comptes des taches sola ires, continuent la série de mesu- Recommends that all institutions that have demonstrated interest and compe- res. tence in the work of obtaining suspot numbers should continue the series. COMMISSION 10 La Commission 10, reconnaissant l'importante contribution que les observations COMMISSION 10 radiQ-astronomiques à très haute frequence (plus haute que 9 GHz) a apporte à la physique solaire, Commission 10, recognizing the important contribution made to solar physics recommande que de telles observations soient fortement supportees au cours by very high frequency (greater than 9 GHz) radio flux observations of the sun, du prochain maximum solaire. Recommends that such observations should continue to be strongly supported during the coming solar maximum.

COMMISSIONS 10 1 12 et 44 COMMISSIONS 10, 12 and 44

desirent attirer !'attention sur la revue du prochain maximum solaire, et recom- draw attention to the coming of Solar Maximum and recommend a sustained mandent un effort soutenu et coordonne pour son étude au cours des trois prochaines and coordinated effort in its study during the next three years. annees.

COMMISSION 10 COMMISSION 10 attentu que !'International and World Days Services(IUWDS)a rendu de grands ser- recognizing vices à la communaute scientifique pendant Ia coordination de programmes internatio- · That the International Ursigram and World Days Service (IUWDS) has render- naux tels que 1' AGI, I' AISQ, et l'EMI; ed valuable service to the scientific community during the coordination of such Que les services fournis par IUWDS ne sont fournis par aucun autre organisme international programs as the IGY, the IQSY and the IMS; et sont importants pour les travaux de plusieurs commissions de l'UAI; · That the services provided by the IUWDS are not provided by any other agen- Que ces services seront particulierement importants pour des programmes tel cy and are relevant to the work of several commissions of the lA U; l'Annee du Maximum solaire; et · That these services will be particularly important for such programs as the Que le IUWDS fournit les comptes-rendus d'evenements geophysiques et solaires Solar Maximum Year; and qui se produiront avec une frequence accrue au cours des quelques prochaines annees; · That the IUWDS included the prompt reporting ofgeophysical and solar events La Commission 10 recommande: which will be occuring with increased frequency in the next few years; Que l'UAI continue à supporter les travaux de 1'IUWDS pour assurer le maintien Recommends that the IAU continue to support the activities of the IUWDS to de cet important service. assure the continuance of this valuable service.

COMMISSION 26 COMMISSION 26 Note avec grande inquietude que i'Observatoire Sproul est menace de fermeture notes with deep concern that the Sproul Observatory is in danger of being closed par le Collège Swarthmore. La cloture du programme astrometrique marquerait la by Swarthmore College. The termination of the astrometric program would cut fin d'une source très feconde et de très longue date de donnees sur les etoiles doubles. off a highly productive source of double star data built up over a long period of ti- Les archives photographiques du rétracteur Sproul et leur croissance continue sont me. The photographic plate collection with its continuing growth from the Sproul uniques et donnent encore des resultats de grande valeur. refractor is unique and continues to yield valuable results.

COMMISSION 5 COMMISSION 5 Vu le nombre toujours croissant de publications dans les disciplines de 1'Astro- In considering the steadily increasing number of publications in the field of nomie et de 1' Astrophysique, Ia Commission 5 (Documentation et donnees astronomi- Astronomy and Astrophysics, Commission 5 (Documentation and Astronomical ques" Data), recommends: recommande !'introduction et l'usage etendu de mots-cles par les auteurs et les - the introduction and extensive use of proper key words by authors and pu- editeurs des principaux journaux et des autres publications de façon à faciliter le blishers of primary journals and other publications in order to facilitate indexing travail de classification et de !'extraction de !'information; and retrieval work apprend avec plaisir !'initiative qu'a pris "Astronomical and Astrophysical Abs-. - Welcomes the initative of Astronomical and Astrophysical Abstracts (AAA) tracts" (AA) de preparer un lexique de base et invite AAA ainsi que les aut res servi- in preparing a draft vocabulary and invites AAA and other astronomical abstract- ces de résumés astronomiques à collaborer dans la preparation d'un lexique commun. ing services to cooperate in the preparation of an agreed vocabulary.

LES COMMISSIONS 25 et 45 COMMISSIONS 25 and 45 Remarquant le fort support de l'UAI pour les programmes d'astrometrie spatiale Noting the strong support of the IAU for space astrometric programmes. recommande d'encourager les facilites complementaires au sol en astrometrie, Recommends that complementary ground-based support in astrometry, photo- photometrie, spectroscopie, etc. metry, spectroscopy, etc. should be encouraged.

COMMISSIONS 41 19 1 31 COMMISSIONS 41 19 , 31

Considérant que l'on prevoit adopter l'UAI (1976) System of Astronomical Cons- considering that it is planned to introduce the lA U (1976) System of Astrono- tants, the 1979 IAU theory of Nutative et l'equinoxe du FK5 le ler janvier 1984, les mical Constants, the 1979 IAU Theory of Nutation, and the equinox of the FK5 on commissions 4, 19 et 31 recommandent que: 1984, January 1, recommend that: a) La relation entre l'heure sidérale moyenne et l'UTl .soit modifiee de telle (a) the relationship between mean sidereal time and UTI be modified so that façon qu'H n'y ait pas de changement dans la valeur et la v1tesse du UT1 a cause there is no change in either value or rate of UTI, due to a correction to the zero de la correction du point zéro des ascensions droite du FK4 et une correction du mou- point of right ascensions of the FK4 and a correction for the motion of the zero vement du point zéro qui sera introduit dans le FK5 ; point, to be introduced in FK5; b) la nouvelle expression (provisoire) pour l'heure siderale moyenne de Green- (b) the new (provisional) expression for Greenwich mean sideral time of Oh UT wich à Oh UT soit GMST de OhUTI 6h38m45s. 832+8640184s . 628Tu+Os.0929 Tu2 , oii be GMST of Oh UTI 6h38m45s.832 + 8640184s.628 Tu+Os.0929 Tu2, where Tu is Tu est le nombre de siècles Julien de 365.25 jours de Temps Universel écoulé depuis the number of Julian centuries of 365.25 days of Universal Time elapsed since 1900 janvier 0 1900, 12h UT1 (JD2415020.0) . Cette expression est rigoureusement équi- January 0, 12h UTI (JD 2415020.0). This expression is rigorously equivalent to valente à la suivante: the following GMST of Oh UTI 6h41m50s.5529 -t 8640184s.8138 Tu+Os.0929 Tu2, GMST de Oh UT1 6h41m50s. 5529 8640184s.8138 Tu+0s.0929 Tu2 , où Tu est mesuré where Tu is measured from 2000 January 1, 12h UTI (JD 2451545.0) . de janvier 1, 2000 à 12h UT1 (JD 2451 545.0). COMMISSIONS 41 19 and 31

LES COMMISSIONS 41 19 et 31 Endorse The proposal of the joint working group on the determination of the rotation of Appuient la proposition du groupe de travail conjoint sur la determination de la the Earth for a special period of international collaboration in the monitoring of rotation de Ia terre pour l'etablissement d'une periode speciale de collaboration in- Earth-rotation and in the intercomparison of the techniques of observation and a- ternationale pour "The monitoring of Earth-rotation and in the inter-comparison nalysis, of the techniques of observations and analysis. Reconnaissent que Ia resportsabilite de !'organisation de ce projet MERIT soit Recognize partagee avec l'union internationale de géodésie et geophysiqne. that the responsibility for the organization of this project MERIT should be Demandent que Ies organismes nationaux et internationaux concernes donnent leur shared with the International Union of Geodesy and Geophysics, and appui technique et financier pour permett:re le developpement et !'execution de ce pro jet. Request that the national and international organizations concerned give full technical and financial support to the development .of the proposal and to the implementa- tion of the project. COMMISSIONS 4 et 16 COMMISSIONS 4 and 16 Appuient le rapport du groupe de travail conjoint sur les coordonnees cartographi- Endorse the Report of the Joint Working Group on Cartographic Coordinates ques et les éléments de rotation des planetes et des satellites. and Rotational Elements of the Planets and Satellites. Recommandent: Que les calculs d'éphémérides physiques des planetes et des satellites dans les Recommend éphémérides nationaux et internationaux se basent sur ce rapport et That the Report be used as the basis for computing the physical ephemerides demandeot of planets and satellites in the international and national ephemerides, qu'un petit groupe de travail continue ses activites dans le but d'obtenir de meil- leurs éléments de rotation. And Request that a small working group continues its activity in order to provide improved rotational elements. COMMISSION 5 COMMISSION 5 Considérant que !'identification d'objets astronomiques dans les publications as- Considering the present unsatisfactory situation of the identification of astro- tronomiques est dans une situation très peu satisfaisante, la commission 5 appuyee nomical objects in astronomical publications, Commission 5, supported by repre- par les représentants des commissions 8, 24, 25, 26, 27, 28, 29, 30, 34, 37, 40, 42, sentatives of Commissions 8, 24, 25, 26, 27, 28, 29, 30, 34, 37, 40, 42 and 45, et 45 demande energiquement que: requests strongly that: a) les éditeurs de revues scientifiques et d'autres publications imposent des a) editors of scientific journals and other publications impose stricter stan- standards stricts auprès des auteurs, concernant !'identification d'astres, en fournissant under IAU auspices, a list of catalog abbreviations be published. des mstructions appropriees aux orbitres to the referees, b) les abbreviations de catalogues soient explicitees dans une note au bas de la b) catalog abbreviations be made explicit either in footnotes or in the biblio- page ou dans les tableaux bibliographiques graphy tables, c) deux identifications soient donnees pour chaque objet afin de faciliter la véri- c) two identifications be quoted for each object, in order to provide a check fication des erreurs, principalement pour les astres peu lumineux against errors andmisprints, especially for faint objects.

COMMISSION 5 COMMISSION 5

Considérant la confusion qui existe presentement dans la litterature concernant Considering the confusion existing at the present time in the literature concern- abreviations de catalogues. La commission 5 appuyee par les representants des com- ing the abbreviations of catalogs, Commission 5, supported by representatives of missions 8, 24, 25, 26, 27, 28, 29, 30, 34, 37, 40, 42 et 45 desire que: Commissions 8, 24, 25, 26, 27, 28, 29, 30, 34, 35, 37, 40, 42 and 45 desires that; Une liste d'abréviations de catalogue soit publiee sous les auspices de l'IAU. under IAU auspices, a list of catalog abbreviations be published. Cette liste serait une nouvelle version de la publication de Fernandez, Lortet et This list should be a new version of the work of Fernandez, Lortet and Spite, Spite révisée par les representants des commissions de l'UAI et éditée par C. Jaschek. revised by the IAU Commission representatives and edited by C. Jaschek.