Accueil > Séminaires d’Astrophysique > CIFIST : Searching for, observing, and modelling extremely metal-poor stars

 

CIFIST : Searching for, observing, and modelling extremely metal-poor stars

Hans-Gunther Ludwig (GEPI)

Par Stephane Charpinet - 26/04/2006

 

Séminaires d’Astrophysique

de l’Observatoire Midi-Pyrénées


Séminaire de 

Hans-Gunther LUDWIG

(GEPI)


Jeudi 11 Mai 2006

exceptionnellement à 14h

OMP - Salle Coriolis


CIFIST : Searching for, observing, and modelling extremely metal-poor stars

I present a report about the ongoing and planned activities within the CIFIST research project. CIFIST - standing for the Cosmological Impact of the First STars - is a EU Marie Curie Excellence Team which has been established in late 2005, and is hosted at the Observatoire de Paris-Meudon. At present, work is related to the abundance analysis of extremely metal poor stars, the search for new such objects (primarily in the SDSS catalog), the observation of extremely metal-poor candidates, and the hydrodynamical modelling of their atmospheres. The investigations provide constraints on the Big Bang nucleosynthesis, the nucleosynthesis in the early universe, as well as the chemical evolution of the Milky Way. Since I am myself mostly involved in the modelling part of the project I will emphasize the role of hydrodynamical model atmospheres in my overview of CIFIST.

 

 

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Laboratoire Astrophysique de Toulouse - Tarbes (UMR5572)

CNRS (Midi-Pyrénées)

Univ. Paul Sabatier

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