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

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

2008-09-25

arxiv.org/abs/0809.4417v1

Astronomy and Astrophysics

Astrophysics

SF2A2008, session GAIA, invited talk

Scientific paper

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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