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Volume 28 (Pdf) title page go es here Be Star Newsletter Contents Editorial A New Lo ok G J Peters The Electronic Journal D R Gies Working Group Matters WG to meet in the Hague D R Gies Contributions A Recent Emission Episo de of Lambda Eri S Ste A Simulation of NRP and Prole Variability D R Gies and M E Hahula Velocity Variations Asso ciated with Nonradial Pulsation D Gies H Observations of Kappa Dra and Kappa CMa J Hao Whats Happ ening Observing Campaign on Lambda Eri R Hirata Observing Campaign on Ostars H Henrichs Hot Star Newsletter P Eenens Preprints Received NearIR variability of Be stars S M Dougherty and A R Taylor NearIR excess of Be stars S M Dougherty et al Tomographic Separation of Comp osite Sp ectra I I I UV Detection of the Hot Companion of Phi Persei M L Thaller et al Multicolor Polarimetry of Selected Be Stars D McDavid Bibliography Be stars B stars Meetings ASTROPHYSICAL APPLICATIONS OF STELLAR PULSATION Note to Subscrib ers How to obtain the pap er version of the Newsletter Be Star Newsletter EDITORIAL A New Lo ok Greetings from a new editorial team and to a new lo ok for the Be Star Newsletter As mentioned in the last issue of the Newsletter the SOC of the Working Group on Be Stars has recommended that future issues of the Be Star Newsletter b e distributed electronically Through the splendid eorts of Doug Gies and his colleagues at Georgia State University we have b een able to provide an electronic version of Issue No as well as a pap er copy which will b e sent to all on the current mailing list Issue No contains the usual sections including Working Group Matters Con tributions Whats Happ ening Preprints Received Bibliography and Meet ings of p ossible interest to the B star community I would like to thank those who sent contributions and provided much appreciated help with the bibliography The new Newsletter will continue to undergo changes with the publication of sub sequent issues For the immediate future we request that contributions b e sent to the editorinchief at the address given on the rst page We recommend that most communications b e sent via Electronic Mail SPANDECnet HYADESPETERS Internet p etershyadesdnetnasagov If it is not p ossible to transmit the contri bution electronically we request that it b e submitted in a cameraready condition see pap ers in the current issue for style Contributions may also b e sent by FAX telephone number but this is not recommended for pap ers that are longer than a half page or those that contain gures due to the degradation of the resolution Dark clear copies of all gures should b e sent by regular mail Illustra tions may also b e sent by Email as a PostScript le Although ASCI I versions are acceptable we prefer that contributions b e sent electronically as a Tex or LaTex le If the contribution is submitted by Email please send a copy to the technical editor Doug Gies Internet giescharagsuedu Contributions for Issue No which will go to press in late should b e received by Octob er I am lo oking forward to seeing you at the forthcoming IAU General Assembly in The Hague NL in August Please let me know your impressions of the new Newsletter and how we might improve it for future issues Gerrie Peters EditorinChief p etershyadesdnetnasagov The Electronic Journal It is a pleasure to welcome readers to the rst electronic issue of The Be Star Newslet ter The format and content will surely evolve over the next few issues and we wel come your feedback and direction Our goal is to provide a timely distribution of news ab out the hot stars in much the same way as the Newsletter has done in the past The Newsletter is available in three formats Be Star Newsletter A pap er version distributed to libraries and subscrib ers who prefer this medium see the Note to Subscrib ers at the end of this issue A plain text version that is distributed electronically to subscrib ers and is avail able through anonymous ftp from charagsuedu BeNewsnewstxt Ar ticles containing gures are also available in this sub directory as PostScript les with names ending in ps The Newsletter is also available using the Mosaic program on the World Wide Web This is p erhaps the fastest and most convenient way to read the Newslet ter If you have this facility available to you enter the following Uniform Re source Lo cator URL httpcharagsueduBeNewsintrohtml If you do not have Mosaic but you have Internet access you might consider obtaining the Mosaic software by anonymous ftp from ftpncsauiucedu National Center for Sup ercomputing Applications at the University of Illinois at UrbanaChampaign They distribute software for most Unixbased systems Apple Macintosh and Mi crosoft Windows This rst electronic issue was created through the eorts of many p eople and I would like to thank in particular Bill Hartkopf CHARA GSU for his help in placing the Newsletter on the WWW and my summer student Joyce Janowsky for her great assistance in many editorial tasks I am also grateful to Dr Neil J Calkin School of Mathematics Georgia Institute of Technology who provided me with an excellent example of an electronic newsletter with his Electronic Journal of Combinatorics A sp ecial word of thanks is due to Stan Owocki Ken Gayley and Steve Cranmer BRI Univ Delaware for providing the cover illustration It depicts gas density variations surrounding a hot main sequence star rotating with equatorial sp eeds of to 1 1 km sec at km sec intervals These simulations show how gas leaving the star into the wind can follow tra jectories that intersect in an equatorial disk For further information on such wind compressed disks see Bjorkman Cassinelli ApJ and Owocki Cranmer Blondin ApJ see Fig On b ehalf of the entire readership of the Newsletter I would like to extend our sincere gratitude to Dietrich Baade and sta at the Europ ean Southern Observatory headquarters who have overseen the pro duction and distribution of the Newsletter from until now The electronic and pap er distribution will now b e done at Georgia State University in Atlanta and we hop e we can build on Dietrichs legacy Please consider sending us contributions b oth big and small that would b e of interest to the community We also welcome your comments on the articles we will p ost these comments on the WWW version of the Newsletter We plan to distribute the Newsletter twice a year but we will send out timely notices of observing campaigns etc by electronic means as the need arises Douglas R Gies giescharagsuedu Be Star Newsletter WORKING GROUP MATTERS WG to meet in the Hague The IAU Working Group on Be Stars will meet during the IAU General Assembly in The Hague Luis Balona labsaaoacza Chair of the WG has arranged to meet on August at am place to b e announced for the regular business meeting and to discuss the scop e of activities within the Newsletter and the WG including a change in name to the Working Group on B stars see Balona L Be Newsletter Please plan to attend if you are travelling to the GA this year The new members of the working group are D Baade dbaadeesoorg J Cassinelli casinellimadrafastrowiscedu CD Garmany garmanyjilacoloradoedu DR Gies giescharagsuedu P Harmanec hecsunstelasucascs H Henrichs huibastrouvanl M Marlb orough malb orophob osastrouwoca MA Smith Chairelect msmithiuegtcdnetnasagov R Waters renssronrugnl CONTRIBUTIONS A Recent Emission Episo de of Lambda Eri S Ste Astronomical Institute Academy of Sciences CZ Ondrejov Czech Republic email sstesunstelasucascz The wellknown Be star Eri was a target in the campaign series announced and co ordinated by R Hirata Be Star Newsletter The campaign was realized on February and was fo cused mainly on a study of rapid variability of the He I line and simultaneous uv by photometry As a part of the campaign the author carried out monitoring of the H prole with the Ondrejov m telescop e equipp ed with a Reticon at the coude fo cus Although only few sp ectra were obtained due to very bad weather conditions they do cument the development of a short emission episo de in January and its decay in January and February Because the star is frequently studied in order to nd relations b etween pulsation characteristics and emission activity we present here this informa tion as a preliminary result of the campaign A more detailed analysis of the emission phase will b e published together with the other results of the campaign Some of the normalized Ondrejov sp ectra are plotted in Figure Two sp ectra ob tained on January show H emission wings of ab out of the continuum Be Star Newsletter intensity and reaching almost to the continuum level Emission b ecame evident also in the absorption core the depth of which was decreased by Weak emission wings can b e recognized in the He I prole Weak emission wings in H may b e still present in the noisy prole of February obtained under p o or observing conditions However no emission is apparent either in sp ectra obtained at Okayama and Dominion Astrophysical Observatory dur ing the campaign nor in Ondrejov sp ectra of February and In spite of many atmospheric lines in the H region Figure do cuments also the app earance of a transient shell sp ectrum A strong shell line of Fe I was observed
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