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arxiv: 0809.4417 · v1 · submitted 2008-09-25 · 🌌 astro-ph

The Gaia satellite: a tool for Emission Line Stars and Hot Stars

Christophe Martayan (GEPI) , Yves Fremat , Ronny Blomme , Anthony Jonckheere , Marcelo Borges , Bertrand De Batz (GEPI) , Bernard Leroy (LESIA) , Rosanna Sordo
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Jean-Claude Bouret (LAM) Fabrice Martins (GRAAL) Jean Zorec (IAP) Coralie Neiner (GEPI) Yael Naz\'e Evelyne Alecian Michele Floquet (GEPI) Anne-Marie Hubert (GEPI) Danielle Briot (GEPI) Anatholy Miroshnichenko Indrek Kolka Philippe Stee Thierry Lanz Georges Meynet
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classification 🌌 astro-ph
keywords starsgaiawillemissionlinesatelliteastrophysicalautomatically
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The Gaia satellite will be launched at the end of 2011. It will observe at least 1 billion stars, and among them several million emission line stars and hot stars. Gaia will provide parallaxes for each star and spectra for stars till V magnitude equal to 17. After a general description of Gaia, we present the codes and methods, which are currently developed by our team. They will provide automatically the astrophysical parameters and spectral classification for the hot and emission line stars in the Milky Way and other close Local Group galaxies such as the Magellanic Clouds.

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