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Title: Numerical Simulations of the Metallicity Distribution in Dwarf Spheroidal Galaxies

Abstract

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
896421
Report Number(s):
SLAC-PUB-12260
astro-ph/0612210; TRN: US200703%%562
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: To appear in the proceedings of CRAL Conference Series 1: Chemodynamics: From First Stars to Local Galaxies, Lyon, France, 10-14 Jul 2006
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DISTRIBUTION; GALAXIES; MILKY WAY; SATELLITES; STARS; Astrophysics,ASTRO

Citation Formats

Ripamonti, Emanuele, Tolstoy, E, Helmi, A, Battaglia, G, /Kapteyn Astron. Inst., Groningen, Abel, T, and /KIPAC, Menlo Park. Numerical Simulations of the Metallicity Distribution in Dwarf Spheroidal Galaxies. United States: N. p., 2006. Web.
Ripamonti, Emanuele, Tolstoy, E, Helmi, A, Battaglia, G, /Kapteyn Astron. Inst., Groningen, Abel, T, & /KIPAC, Menlo Park. Numerical Simulations of the Metallicity Distribution in Dwarf Spheroidal Galaxies. United States.
Ripamonti, Emanuele, Tolstoy, E, Helmi, A, Battaglia, G, /Kapteyn Astron. Inst., Groningen, Abel, T, and /KIPAC, Menlo Park. 2006. "Numerical Simulations of the Metallicity Distribution in Dwarf Spheroidal Galaxies". United States. https://www.osti.gov/servlets/purl/896421.
@article{osti_896421,
title = {Numerical Simulations of the Metallicity Distribution in Dwarf Spheroidal Galaxies},
author = {Ripamonti, Emanuele and Tolstoy, E and Helmi, A and Battaglia, G and /Kapteyn Astron. Inst., Groningen and Abel, T and /KIPAC, Menlo Park},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/896421}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 12 00:00:00 EST 2006},
month = {Tue Dec 12 00:00:00 EST 2006}
}

Conference:
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