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The Most Metal-Poor Stars in the Galaxy

Published online by Cambridge University Press:  21 April 2007

E. Emsellem ,
H. Wozniak ,
G. Massacrier ,
J.-F. Gonzalez ,
J. Devriendt ,
N. Champavert  and
A.S. Font
A.S. Font*
Affiliation:
Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA
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Abstract

The most metal-poor stars provide important constraints on a number of problems, including the modeling of the early stages of galaxy assembly, the nature of first stars and the reionization. I present here numerical results on the distribution of metal-poor stars in stellar halos formed in a ΛCDM cosmology. I then discuss the results in light of current observational data of very metal-poor stars in the halos of Milky Way, Andromeda and neighboring dwarf galaxies.


Type
Research Article
Information
European Astronomical Society Publications Series , Volume 24: CRAL-2006. Chemodynamics: From First Stars to Local Galaxies , 2007 , pp. 209 - 214
Copyright
© EAS, EDP Sciences, 2007

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