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Abstract: The Gaia satellite will be launched at the end of 2011. It will observe atleast 1 billion stars, and among them several million emission line stars andhot stars. Gaia will provide parallaxes for each star and spectra for starstill V magnitude equal to 17. After a general description of Gaia, we presentthe codes and methods, which are currently developed by our team. They willprovide automatically the astrophysical parameters and spectral classificationfor the hot and emission line stars in the Milky Way and other close LocalGroup galaxies such as the Magellanic Clouds.



Author: Christophe Martayan GEPI, Yves Fremat, Ronny Blomme, Anthony Jonckheere, Marcelo Borges, Bertrand De Batz GEPI, Bernard Leroy LES

Source: https://arxiv.org/



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