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Ocabulary of Definitions : P
Service bibliothèque Catalogue historique de la bibliothèque de l’Observatoire de Nice Source : Monographie de l’Observatoire de Nice / Charles Garnier, 1892. Marc Heller © Observatoire de la Côte d’Azur Février 2012 Présentation << On trouve… à l’Ouest … la bibliothèque avec ses six mille deux cents volumes et ses trentes journaux ou recueils périodiques…. >> (Façade principale de la Bibliothèque / Phot. attribuée à Michaud A. – 188? - Marc Heller © Observatoire de la Côte d’Azur) C’est en ces termes qu’Henri Joseph Anastase Perrotin décrivait la bibliothèque de l’Observatoire de Nice en 1899 dans l’introduction du tome 1 des Annales de l’Observatoire de Nice 1. Un catalogue des revues et ouvrages 2 classé par ordre alphabétique d’auteurs et de lieux décrivait le fonds historique de la bibliothèque. 1 Introduction, Annales de l’Observatoire de Nice publiés sous les auspices du Bureau des longitudes par M. Perrotin. Paris,Gauthier-Villars,1899, Tome 1,p. XIV 2 Catalogue de la bibliothèque, Annales de l’Observatoire de Nice publiés sous les auspices du Bureau des longitudes par M. Perrotin. Paris,Gauthier-Villars,1899, Tome 1,p. 1 Le présent document est une version remaniée, complétée et enrichie de ce catalogue. (Bibliothèque, vue de l’intérieur par le photogr. Jean Giletta, 191?. - Marc Heller © Observatoire de la Côte d’Azur) Chaque référence est reproduite à l’identique. Elle est complétée par une notice bibliographique et éventuellement par un lien électronique sur la version numérisée. Les titres et documents non encore identifiés sont signalés en italique. Un index des auteurs et des titres de revues termine le document. -
121012-AAS-221 Program-14-ALL, Page 253 @ Preflight
221ST MEETING OF THE AMERICAN ASTRONOMICAL SOCIETY 6-10 January 2013 LONG BEACH, CALIFORNIA Scientific sessions will be held at the: Long Beach Convention Center 300 E. Ocean Blvd. COUNCIL.......................... 2 Long Beach, CA 90802 AAS Paper Sorters EXHIBITORS..................... 4 Aubra Anthony ATTENDEE Alan Boss SERVICES.......................... 9 Blaise Canzian Joanna Corby SCHEDULE.....................12 Rupert Croft Shantanu Desai SATURDAY.....................28 Rick Fienberg Bernhard Fleck SUNDAY..........................30 Erika Grundstrom Nimish P. Hathi MONDAY........................37 Ann Hornschemeier Suzanne H. Jacoby TUESDAY........................98 Bethany Johns Sebastien Lepine WEDNESDAY.............. 158 Katharina Lodders Kevin Marvel THURSDAY.................. 213 Karen Masters Bryan Miller AUTHOR INDEX ........ 245 Nancy Morrison Judit Ries Michael Rutkowski Allyn Smith Joe Tenn Session Numbering Key 100’s Monday 200’s Tuesday 300’s Wednesday 400’s Thursday Sessions are numbered in the Program Book by day and time. Changes after 27 November 2012 are included only in the online program materials. 1 AAS Officers & Councilors Officers Councilors President (2012-2014) (2009-2012) David J. Helfand Quest Univ. Canada Edward F. Guinan Villanova Univ. [email protected] [email protected] PAST President (2012-2013) Patricia Knezek NOAO/WIYN Observatory Debra Elmegreen Vassar College [email protected] [email protected] Robert Mathieu Univ. of Wisconsin Vice President (2009-2015) [email protected] Paula Szkody University of Washington [email protected] (2011-2014) Bruce Balick Univ. of Washington Vice-President (2010-2013) [email protected] Nicholas B. Suntzeff Texas A&M Univ. suntzeff@aas.org Eileen D. Friel Boston Univ. [email protected] Vice President (2011-2014) Edward B. Churchwell Univ. of Wisconsin Angela Speck Univ. of Missouri [email protected] [email protected] Treasurer (2011-2014) (2012-2015) Hervey (Peter) Stockman STScI Nancy S. -
Among the Intrinsic Variables, the RV Tauri Stars Days
496 ASTRONOMY: PA YNE-GAPOSCHKIN AND BRENTON PROC. N. A. S. A STUDY OF THE RV TAURI VARIABLES By CECILIA PAYNE-GAPOSCHKIN AND VIRGINIA K. BRENTON HARVARD COLLEGE OBSERVATORY Communicated October 16, 1942 1. Definitions.-Among the intrinsic variables, the RV Tauri stars stand out with rather definite characteristics. Three principal criteria may be used for assigning stars to the class. (a) Successive minima differ in depth. Deep and shallow minima are conventionally called "primary" and "secondary." (b) Primary and secondary minima interchange phases at intervals. (c) The stars are variable in spectrum and in radial velocity. The spectrum is of Class F, G or K at maximum. The shortest known period is 38 days (EZ Aquilae), the longest is 146 days (R Scuti). Although the period usually assigned to these stars is that from one primary minimum to the next, a comparison with the velocity curve shows that the star undergoes a type of pulsation with one-half that period. The brighter RV Tauri stars have recently been studied on the Harvard collection of stellar photographs. Of the twenty-nine stars now assigned to the class, fourteen proved to be bright enough for intensive study. A discussion of about sixteen thousand observations of these stars has been completed,' and the present note is intended to summarize some of the physical results. 2. The Secondary Characteristics.-Many RV Tauri stars show rather marked irregularities in period, and though over a long interval a mean period can always be assigned, instantaneous elements for short intervals may require periods differing by one or two per cent. -
Variabelbulletinen Nr. 1
Variabelbulletinen Nr 1 Augusti 2012 54600 54800 55000 55200 55400 55600 55800 56000 56200 3 4 5 6 7 8 9 10 11 12 13 14 Ljuskurva för miran Chi Cygni 2 Variabelbulletinen Nr 1. Augusti 2012. ISSN 2001-3930 En publikation från Svensk AmatörAstronomisk Förening Variabelsektionen (SAAF/V) Sektionsledare Chris Allen Ansvariga för databasen SVO Thomas Karlsson och Robert Wahlström Redaktör Hans Bengtsson Icke signerat material har författats av redaktören. Innehållsförteckning Introduktion. …………………...…………………………………………………………………….……………………….…… 4 Hans Bengtsson: Klassiska miror och legendariska variabilister. ………………...…….…..... 4 Thomas Karlsson: Epsilon Aurigae. ….……………………...……………………………...………………..…. 16 Hans Bengtsson: Våra variabler. Första delen. ………………………………………..…….....….……. 16 Thomas Karlsson: Ljusstark supernova i M101. ………………………………………………..…….… 26 Gustav Holmberg: Några RCB-stjärnor säsongen 2011-2012. …....…………...……….……. 28 Thomas Karlsson: Bestämning av period för 58 variabler. …………..……………...……….…... 31 Thomas Karlsson: Maxima för miror. ………………………………………………………………...……….… 33 Thomas Karlsson: Fotometri i Sagitta och Vulpecula. …………………………………………….… 34 Statistisk från SVO. ……………..…………………………………………...………………………………………...…… 38 Hans Bengtsson: Variabelmöten – en ny tradition. …………...……………………………………….. 39 Hans Bengtsson: Flera flugor i samma smäll. …………………………...............................…………... 40 Förstasidan Ljuskurva för miran Chi Cygni. Följande observatörer har bidragit till diagrammet: Chris Allen (45), Hans Bengtsson (102), Göran Fredriksson (9), -
Il Manuale Delle Stelle Variabili
Stefano Toschi Simone Santini Flavio Zattera Ivo Peretto Il Manuale delle Stelle VarIabIlI GUIDA ALL’OSSERVAZIONE E ALLO STUDIO DELLE STELLE VARIABILI I° Edizione@2006 Sommario 0. Prefazione 1. Introduzione alle stelle variabili 1.1 Un po’ di storia 1.2 L’osservazione amatoriale 2. Una serata osservativa tipo 2.1 Preparazione di un programma osservativo 2.2 Equipaggiamento necessario 2.3 Passo per passo di una sessione osservativa 3. Il dato fotometrico 3.1 Effetti sull’osservazione 3.2 Affinare la propria tecnica osservativa 4. Metodi visivi fotometrici delle stelle variabili 4.1 Metodo frazionario 4.2 Metodo a gradini di Argelander 4.3 Metodo a gradini di Pogson 5. Personalizzazione della sequenza di confronto 5.1 Sequenza di confronto con almeno tre stelle di confronto 5.2 Sequenze incomplete 5.3 Precisione dell'osservazione 6. Elaborazione della stima temporale 6.1 La correzione eliocentrica 6.2 Note sull’uso della correzione eliocentrica 6.3 L’uso delle effemeridi 7. Ottenere la curva di luce 7.1 Il Compositage 7.2 Alcune sigle 7.3 Il massimo medio per le Cefeidi 7.4 Tracciare la curva di luce e ottenere il tempo del massimo 7.5 Costruzione della curva di luce senza le magnitudini di confronto 7.6 Il metodo di simmetria per il minimi 8. Il Decalage sistematico 9. Fotometria differenziale di stelle variabili al CCD 9.1 Un cenno sulle sequenze di cartine al CCD 9.2 Metodo per iniziare a stilare una sequenza fotometrica riferita a una variabile 9.3 Il CCD e la fotometria differenziale 9.4 La normalizzazione dell immagini 9.5 Fotometria differenziale e coefficienti di trasformazione del colore 10. -
9781402036439.Pdf
THE MULTINATIONAL HISTORY OF STRASBOURG ASTRONOMICAL OBSERVATORY ASTROPHYSICS AND SPACE SCIENCE LIBRARY VOLUME 330 EDITORIALBOARD Chairman W.B. BURTON, National Radio Astronomy Observatory, Charlottesville, Virginia, U.S.A. ([email protected]); University of Leiden, The Netherlands ([email protected]) Executive Committee J. M. E. KUIJPERS, University of Nijmegen, The Netherlands E. P. J. VAN DEN HEUVEL, University of Amsterdam, The Netherlands H. VAN DER LAAN, University of Utrecht, The Netherlands MEMBERS J. N. BAHCALL, The Institute for Advanced Study, Princeton, U.S.A. F. BERTOLA, University of Padua, Italy J. P. CASSINELLI, University of Wisconsin, Madison, U.S.A. C. J. CESARSKY, European Southern Observatory, Garching bei München, Germany O. ENGVOLD, University of Oslo, Norway A. HECK, Strasbourg Astronomical Observatory, France R. McCRAY, University of Colorado, Boulder, U.S.A. P. G. MURDIN, Institute of Astronomy, Cambridge, U.K. F. PACINI, Istituto Astronomia Arcetri, Firenze, Italy V. RADHAKRISHNAN, Raman Research Institute, Bangalore, India K. SATO, School of Science, The University of Tokyo, Japan F. H. SHU, University of California, Berkeley, U.S.A. B. V. SOMOV, Astronomical Institute, Moscow State University, Russia R. A. SUNYAEV, Space Research Institute, Moscow, Russia Y. TANAKA, Institute of Space & Astronautical Science, Kanagawa, Japan S. TREMAINE, Princeton University, U.S.A. N. O. WEISS, University of Cambridge, U.K. THE MULTINATIONAL HISTORY OF STRASBOURG ASTRONOMICAL OBSERVATORY Edited by ANDRÉ H CK Observatoire Astronomique, Strasbourg, France A C.I.P. Catalogue record for this book is available from the Library of Congress. ISBN 10 1-4020-3643-4 (HB) ISBN 13 978-1-4020-3643-9 (HB) ISBN 10 1-4020-3644-2 (e-book) ISBN 13 978-1-4020-3644-6 (e-book) Published by Springer, P.O. -
Commerzbank Aktiengesellschaft
Commerzbank Aktiengesellschaft Head-office: Kaiserplatz, 60261 Frankfurt am Main, Germany German Stock Corporation Registered Share Capital: EUR 1.556.326.015,40 Commercial Registry Number: HRB 32 000 ANNUAL REPORT 2004 INDEX SECTION 1 ANNUAL REPORT ...............................................................................................................................................1 BALANCE SHEET.............................................................................................................................................95 STATEMENT OF CHANGES IN EQUITY .................................................................................................................96 CHANGES IN MINORITY INTERESTS ....................................................................................................................97 CASH FLOW STATEMENT .................................................................................................................................98 NOTES..........................................................................................................................................................100 AUDITOR’S REPORT ......................................................................................................................................183 SUPERVISORY BOARD REPORT......................................................................................................................184 SECTION 2 INDIVIDUAL ACCOUNTS OF COMMERZBANK AG...............................................................................................223 -
Are Radio Pulsars Extraterrestrial Communication Beacons?
obiolog str y & f A O u o l t a r e n a r c u h o J LaViolette, Astrobiol Outreach 2016, 4:1 Journal of Astrobiology & Outreach DOI: 10.4172/2332-2519.1000148 ISSN: 2332-2519 Research Article Open Access Are Radio Pulsars Extraterrestrial Communication Beacons? LaViolette PA* The Starburst Foundation, 1176 Hedgewood Lane, Niskayuna, NY, 12309, USA *Corresponding author: LaViolette PA, The Starburst Foundation, 1176 Hedgewood Lane, Niskayuna, NY, 12309, United States, Tel: +1 518-372-2711; E-mail: [email protected] Received date: Feb 08, 2016; Accepted date: March 01, 2016; Published date: March 08, 2016 Copyright: © 2016 LaViolette PA. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Evidence is presented that radio pulsars may be artificially engineered beacons of extraterrestrial intelligence (ETI) origin. It is proposed that they are beaming signals to various targeted Galactic locations including our solar system and that their primary purpose may be for interstellar navigation. More significantly, about half a dozen pulsars appear to be marking key sky locations that convey a message intended for our Galactic locale. One of these, the Millisecond Pulsar (PSR1937 + 21), appears to make reference to the center of our Galaxy, which would be a logical shared reference point for any interstellar communication. It is noted that of all pulsars, this one comes closest to the point that lie one-radian from the Galactic center along the galactic plane. -
Sternwarte Online.Pdf (4.371Mb)
Klaus Beuermann (Hg.) Grundsätze über die Anlage neuer Sternwarten Georg Heinrich Borheck Erschienen im Universitätsverlag Göttingen 2005 Klaus Beuermann (Hg.) Grundsätze über die Anlage neuer Sternwarten unter Beziehung auf die Sternwarte der Universität Göttingen von Georg Heinrich Borheck Mit einem Geleitwort des Präsidenten der Georg-August-Universität Göttingen, Kurt von Figura und Beiträgen von David Aubin, Klaus Beuermann, Robert Förster, Christian Freigang und Nicolaas Rupke, Universitätsverlag Göttingen 2005 Bibliografische Information der Deutschen Bibliothek Die Deutsche Bibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliographie; detaillierte bibliografische Daten sind im Internet über <http://dnb.ddb.de> abrufbar. © Universitätsverlag Göttingen 2005 Bearbeitet von der Niedersächsischen Staats- und Universitätsbibliothek Göttingen Abbildungsnachweis: Universitäts-Sternwarte Göttingen: 6, 7, 8, 10, 15, 16, 20, 21, 22, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34. K. Reinsch, Universitäts-Sternwarte: 1, 9, 11, 12, 13, 25. R. Förster: 17, 18, 19. Niedersächsische Staats- und Universitätsbibliothek Göttingen: 4, 5, 23. Privatbesitz: 2, 3, 14. Digitalisierungen: Göttinger Digitalisierungszentrum an der Niedersächsischen Staats- und Universitätsbibliothek Göttingen Umschlaggestaltung: Margo Bargheer Satz und Layout: Universitätsverlag Göttingen ISBN 3-938616-02-4 Inhaltsverzeichnis Kurt von Figura Geleitwort des Präsidenten ...................................................................................................................... -
Karl Schwarzschild (1873-1916) Klaus Reinsch Und Axel D
arl Schwarzschild (1873–1916) gilt weltweit als einer der begabtesten und bedeutendsten Astronomen aller Zeiten und als Mitbegründer der Astrophysik.K Geboren in Frankfurt am Main, wirkte er von 1901 bis 1909 Karl Schwarzschild als Professor für Astronomie und Direktor der Sternwarte in Göttingen (1873-1916) und von 1909 bis 1916 als Direktor des Astrophysikalischen Observato- riums in Potsdam. Im Laufe seines allzu kurzen Lebens veröffentlichte Schwarzschild etwa Ein Pionier und Wegbereiter 150 wissenschaftliche Arbeiten, viele davon von fundamentaler Bedeu- tung für die Entwicklung der Astronomie und Astrophysik. der Astrophysik Aus Anlass seines 100. Todestages fand am 19. Mai 2016 in einer sei- ner früheren Wirkungsstätten, der heutigen Historischen Sternwarte in Herausgegeben von Klaus Reinsch Göttingen, ein Gedenk-Kolloquium statt. Die schriftlichen Fassungen der dabei gehaltenen Vorträge sind, ergänzt um einen am 8. September und Axel D. Wittmann 2016 anlässlich der Eröffnung der Schwarzschild-Ausstellung in der Fakultät für Physik gehaltenen Vortrag, im vorliegenden Band abgedruckt. Klaus Reinsch und Axel D. Wittmann (Hg.) Karl Schwarzschild (1873-1916) Klaus Reinsch und Axel D. Wittmann (Hg.) Karl Schwarzschild ISBN: 978-3-86395-295-2 Universitätsverlag Göttingen Universitätsverlag Göttingen Klaus Reinsch und Axel D. Wittmann (Hg.) Karl Schwarzschild (1873-1916) Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International Lizenz. erschienen im Universitätsverlag Göttingen 2017 Klaus Reinsch und Axel D. Wittmann (Hg.) Karl Schwarzschild (1873-1916) Ein Pionier und Wegbereiter der Astrophysik Universitätsverlag Göttingen 2017 Bibliographische Information der Deutschen Nationalbibliothek Die Deutsche Nationalbibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliographie; detaillierte bibliographische Daten sind im Internet über <http://dnb.dnb.de> abrufbar. -
Astronomiczny Obserwatorjum Krakowskiego
ROCZNIK ASTRONOMICZNY OBSERWATORJUM KRAKOWSKIEGO NA ROK 1928. WYDAWNICTWA TOM V. WYDANY PRZEZ PROF. TAD. BANACHIEWICZA NAKŁADEM WŁASNYM. KRAKÓW 1928. DRUKARNIA ZWIĄZKOWA. ROCZNIK ASTRONOMICZNY OBSERWATORJUM KRAKOWSKIEGO ł NA ROK 1928. WYDAWNICTWA TOM V. WYDANY PRZEZ PROF. TAD. BANACH!EWICZA NAKŁADEM WŁASNYM. KRAKÓW 1928. DRUKARNIA ZWIĄZKOWA. s. m T> I PRZEDMOWA. zczęśliwi jesteśmy, że w Roczniku niniejszym, w trzydziestą rocznicę pierwszego ukazania się tak drogiego całej generacji przyrodników naszych „Poradnika dla Samouków", dać mo żemy czytelnikom podobiznę twórcy jego, jednego z cichych a niestrudzonych bohaterów oświaty i nauki narodowej, STANISŁAWA MICHALSKIEGO. Polska odrodzona powierzyła mu jedno ze stanowisk czołowych w państwie, ale wielu z nas pamięta go jeszcze przy wielo letniej znojnej pracy i w dawnej Polsce przedwojennej, kiedy jedyną za poświęcenie nagrodą zewnętrzną były nie dostojeństwa i zaszczyty, lecz przeciwnie — prywacje w życiu osobistem. Minęły lata, czasy są inne, ale dr. MICHALSKI nie zmienił się i na swem obecnem wy- bitnem stanowisku pozostał tym samym, dostępnym dla wszystkich pracowników naukowych, kochanym przez tych wszystkich co go znają, żywo odczuwającym wszelkie potrzeby nauki polskiej i zawsze stara jącym się na nie radę jakąś znaleźć. Że i astronomja polska i wyda wnictwa nasze nieraz z tej życzliwej pomocy korzystały i serdecznie mu za nią są wdzięczne, nie potrzebujemy już tego dodawać. * Jest rzeczą pożyteczną, nawet dla jednostki, od czasu do czasu obejrzeć się za siebie, aby rzucić okiem na owoce swej pracy. Spostrzega się wówczas, co mogło być zrobione, a czego nie dokonano, i widzi się lepiej usterki w swej działalności, zaś uzyskane pomyślne wyniki zachęcają do dalszych wysiłków. Jeżeli tego rodzaju rachunek sumienia dla jednostki jest tylko pożyteczny, to dla instytutu publicznego jest on już poniekąd obowiązkowy, gdyż społeczeństwu, które ponosi ciężaiy materjalne (przez instytuty naukowe sowicie mu zresztą zwracane), należy się od czasu do czasu informacja, co i jak zrobiono. -
Yellow Supergiant Star
Yellow supergiant star A yellow supergiant star is a star, generally of spectral type F or G, having a supergiant luminosity class (e.g. Ia or Ib). They are stars that have evolved away from the main sequence, Hypergiants expanding and becoming more luminous. Supergiants Yellow supergiants are smaller than red Bright giants supergiants; naked eye examples include Canopus and Polaris. Many of them are variable stars, Giants mostly pulsating Cepheids such as δ Cephei itself. Subgiants absolute magni- Main sequence ("dwarfs") Contents tude (MV) Subdwarfs Spectrum Red Properties White dwarfs dwarfs Variability Evolution Brown Yellow hypergiants dwarfs Hertzsprung–Russell diagram References Spectral type Spectrum Yellow supergiants generally have spectral types of F and G, although sometimes late A or early K stars are included.[1][2][3] These spectral types are characterised by hydrogen lines that are very strong in class A, weakening through F and G until they are very weak or absent in class K. Calcium H and K lines are present in late A spectra, but stronger in class F, and strongest in class G, before weakening again in cooler stars. Lines of ionised metals are strong in class A, weaker in class F and G, and absent from cooler stars. In class G, neutral metal lines are also found, along with CH molecular bands.[4] Supergiants are identified in the Yerkes spectral classification by luminosities classes Ia and Ib, with intermediates such as Iab and Ia/ab sometimes being used. These luminosity classes are assigned using spectral lines that