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Accueil > Séminaires > Archive des séminaires d’Utinam > Archive des séminaires d’astrophysique (jusqu’en 2011) > 2008

CoRoT some results and tools developed for spectral classification

par Edith Burgey -

Jeudi 21 février 2008

Mauro Barbieri

Laboratoire d’Astrophysique de Marseille

Résumé :

CoRoT is the first space mission dedicated to the detection of transiting extrasolar planets. In this talk I will show some highlights about the firsts results about exoplanets discovered with CoRoT and some ideas about the stellar populations of the CoRoT fields. More specifically I will present a tool developed for spectral classification of stars in the CoRoT FoV. During last years a large observational effort was done for the photometric characterization of the CoRoT observable fields. For the purpose of target selections, we have developed a bayesian method for estimation of stellar parameters and relative uncertainties from photometric data and theoretical isochrones. The method permit to obtain for each star the relative posterior probability density as a function of the parameter of interest (mass, radius, distance, etc.)