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  • 11/26/2013: Dimitri Mihalas passed away in Santa Fe on November 21, 2013 at the age of 74. Read the obituary.
  • 11/5/2013: IAU Symp. 307 entitled "New Windows on Massive Stars: Asteroseismology, Interferometry, Spectropolarimetry" will be held in Geneva (Switzerland) on June 23 - 27, 2014. More information can be found at
  • 10/28/2013: Runqian Huang passed away in Kunming on October 10, 2013 at the age of 79. Zhanwen Han wrote an obituary.
  • 03/13/2012: The member directory including the mailing list has been updated. If you notice any errors, please let us know.
  • 08/13/2010: Evry Schatzman passed away in Paris on April 25, 2010 at the age of 89. Jean-Claude Pecker wrote an obituary.
  • 04/07/2009: The web poll went well – 70 members took part, and and two members sent their pereferences via email. The four new members of the Organizing Committee of Commission 35 who will be officially appointed during the GA in Rio next August are: Jordi Isern (Spain), Claus Leitherer (USA), Marco Limongi (Italy), and Jacco van Loon (UK). Most of the othr candidates obtained a respectable number of votes too. We congratulate these new OC members and wish them good luck in their efforts for the commission during the next triennium.
  • 03/26/2009: All members of IAU Commission 35 are urged to participate in the election of the four new members of the Organizing Committee. The poll is conducted online from the election page on this website. Full details of the election process are given in a message from Dr. Francesca D'Antona.

  • 03/08/2009: The Triennial Report of IAU Commission 35 covering the period 1 July 2005 - 30 June 2008 has been posted under "Reports". It will be published in Reports on Astronomy, ed. K. A. van der Hucht (Cambridge: CUP), Vol. XXVIIA.

  • 05/25/2007: Bohdan Paczyński passed away in his Princeton home on April 19, 2007 after a three-year battle with brain cancer. An obituary written by Virginia Trimble has been posted.

  • 09/05/2006: The report of the business meeting at the General Assembly in Prague on August 16 is available. 

  • 08/04/2006: Join us for our business meeting at the General Assembly in Prague on August 16. Click here for details. 

  • 07/07/2006: We are saddened to announce the death of Vittorio Castellani. An obituary written by Amedeo Tornambè has been posted.

  • 04/13/2006: Corinne Charbonnel from Laboratoire D'Astrophysique de Toulouse et Tarbes (currently on leave at Observatoire de Geneve) has been elected the Vice-President of Commission 35 for the 2006 - 2009 term.

  • 03/31/2006: The Organizing Committee of IAU Commission 35 decided to present to Division IV of the IAU the following candidates for the four OC vacancies for next term: John Lattanzio (Australia), Achim Weiss (Germany,) Gilles Fontaine (Canada), and Lev Yungelson (Russia). Our choice of Yungleson, who received the same number of votes as Hiromoto Shibahashi, was motivated by the need of having a fair representation in the OC of all research fields within the scope of interest of our Commission. W.D. would like to thank all 99 Commission Members who took part in the poll.

  • 10/31/2005: Norman Baker, a distinguished member of our commission, recently passed away. Wojciech Dziembowski, Alfred Gautschy, and Douglas Gough wrote an obituary.

  • 08/23/2005: IAU AGS Karel van der Hucht announces changes in the procedure for IAU sponsored meetings. Read his message.

  • 07/27/2005: George Richard Isaak, whose pioneering work in resonant-scattering spectroscopy led to the detection of the solar five-minute oscillation in observations of the Sun passed away on June 5, 2005. An obituary was written by Rachel Howe (National Solar Observatory, Tucson).

  • 07/27/2005: The scientific program of the 26th General Assembly of the International Astronomical Union in Prague is available.

  • 06/07/2005: The successful proposals for IAU symposia to be held during the GA in Prague were announced by the IAU. Two symposia of particular interest to members of Commission 35 are among the six approved by the IAU. These are Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, proposed by Petr Harmanec, William Hartkopf, and Edward Guinan and Convection in Astrophysics, proposed by Friedrich Kupka and Ian Roxburgh. Congratulation to the proposers, who will appreciate comments and suggestions from all commission members.

  • 10/21/2004: A draft proposal for an IAU symposium to be held during the GA entitled Modelling Dense Stellar Systems has been posted. Ladislav Šubr is asking for feedback from Commission 35 members. Please send comments to him or post them on our Discussion Board.

  • 10/15/2004: Claus Leitherer, on behalf of the SOC, has submitted a draft proposal for a Joint Discussion during the General Assembly. The title is Calibrating the Top of the Stellar M-L Relation. Comments are most welcome!  

  • 09/09/2004: Fred Rasio, on behalf of the organizing committee, is planning to propose an IAU Symposium on Neutron Stars & Black Holes in Binaries and Star Clusters during the GA in Prague. Commission members can read his Letter of Intent and send comments to Fred or post feedback on our Discussion Board.  

  • 09/01/2004: Friedrich Kupka submitted a Letter of Intent for a symposium during the General Assembly with the title Convection in Astrophysics. Comments from commission members should be sent to Friedrich or posted on our Discussion Board.  

  • 08/25/2004: John Lattanzio, on behalf of the Working Group on Abundances in Red Giants, intends to propose a Joint Discussion on Pre-Solar Grains as Astrophysical Tools during the GA in Prague. All members of Commission 35 are encouraged to review the Letter of Intent for the proposed session and to provide comments, either to John directly or (preferably) via our Discussion Board.  

  • 07/21/2004: The IAU has introduced the deadlines for Colloquia and Symposia in 2006. For more information visit Note that 2006 is the year of the IAU General Assembly, which will take place in Praha (Czech Republic) on August 2–15, 2006. Special rules apply in such years.

  • 01/26/2004: Members of IAU Comm. 35 have the opportunity to join an online Discussion Board from the commission website. The purpose of the Discussion Board is to provide a forum for pursuing new initiatives and to foster communication between members.

  • 10/15/2003: The report on the Business Meeting of Commission 35 during the XXVth General Assembly on July 21, 2003 was submitted to the editor. A copy of the report has been posted on this site.

  • 07/08/2003: During the General Assembly of the IAU in Sydney, Australia (July 13 - 26), a business meeting of Commission 35 will be held in Room PM 2 on Monday, July 21 (time slot 4; i.e., immediately following afternoon tea/coffee). The meeting promises to be a short one, with a few announcements from the Chair (Don VandenBerg) - and some discussion of the C35 web site (lead by Claus Leitherer), if there is a sufficient number of members in attendance. Do stop by, if only to see some of your colleagues whom you might otherwise miss during the busy GA.

  • 03/25/2003: The votes are in! The members of Commission 35 elected Corinne Charbonnel, Richard Larson, Jim Liebert, and Ewald Müller for the vacant OC membership positions. Visit the election page for complete election results.

  • 03/18/2003: All members of IAU Commission 35 are urged to participate in the election of the four new members of the Organizing Committee. The poll is conducted online from the election page on this website. Full details of the election process are given in a message from Dr. Don Vandenberg.

  • 02/27/2003: Dr. Don Vandenberg, President of Commission 35 invites the commission members to provide nominations for upcoming vacancies in the Organizing Committee. The committee members are also reminded of several other action items for the business meeting during the General Assembly. Read the full text of his message.

  • 02/11/2003: Commission 35 of the International Astronomical Union announces the launch of its new website at The new site is hosted by Space Telescope Science Institute (Baltimore) and maintained by Claus Leitherer. We aim to provide commission members and the community at large with a comprehensive set of tools, links, and the latest information related to stellar constitution.