Numerical simulations of the metallicity distribution in dwarf spheroidal galaxies
| Autor: | Ripamonti, E., Tolstoy, E., Helmi, A., Battaglia, G., Abel, T., Emsellem, E, Wozniak, H, Massacrier, G, Gonzalez, JF, Devriendt, J, Champavert, N |
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| Přispěvatelé: | Kapteyn Astronomical Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Physics
Star formation Milky Way Metallicity Astrophysics (astro-ph) General Engineering FOS: Physical sciences Astronomy and Astrophysics Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Galaxy Stars Distribution (mathematics) Space and Planetary Science Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics STARS Dwarf galaxy |
| Zdroj: | CRAL-2006 Chemodynamics: From First Stars to Local Galaxies, 15-20 STARTPAGE=15;ENDPAGE=20;TITLE=CRAL-2006 Chemodynamics: From First Stars to Local Galaxies |
| ISSN: | 1633-4760 |
| DOI: | 10.1051/eas:2007051 |
| Popis: | 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. 6 pages, 3 figures. To appear in the proceedings of the CRAL-Conference Series I "Chemodynamics: from first stars to local galaxies", Lyon 10-14 July 2006, France, Eds. Emsellem, Wozniak, Massacrier, Gonzalez, Devriendt, Champavert, EAS Publications Series |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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