Numerical simulations of the metallicity distribution in dwarf spheroidal galaxies

Details Numerical simulations of the metallicity distribution in dwarf spheroidal galaxies Numerical simulations of the metallicity distribution in dwarf spheroidal galaxies

2006-12-08

arxiv.org/abs/astro-ph/0612210v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures. To appear in the proceedings of the CRAL-Conference Series I "Chemodynamics: from first stars to local gal

Scientific paper

10.1051/eas:2007051

Recent observations show that the number of stars with very low metallicities in the dwarf spheroidal satellites of the Milky Way is low, despite the low average metallicities of stars in these systems. We undertake numerical simulations of star formation and metal enrichment of dwarf galaxies in order to verify whether this result can be reproduced with "standard" assumptions. The answer is likely to be negative, unless some selection bias against very low metallicity stars is present in the observations.

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