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Chemical enrichment in Ultra-Faint Dwarf galaxies

Published online by Cambridge University Press:  09 May 2016

Donatella Romano
Donatella Romano*
Affiliation:
INAF, Osservatorio Astronomico di Bologna, Via Ranzani 1, I-40127, Bologna, Italy email: donatella.romano@oabo.inaf.it
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Abstract

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Our view of the Milky Way's satellite population has radically changed after the discovery, ten years ago, of the first Ultra-Faint Dwarf galaxies (UFDs). These extremely faint, dark-matter dominated, scarcely evolved stellar systems are found in ever-increasing number in our cosmic neighbourhood and constitute a gold-mine for studies of early star formation conditions and early chemical enrichment pathways. Here we show what can be learned from the measurements of chemical abundances in UFD stars read through the lens of chemical evolution studies, point out the limitations of the classic approach, and discuss the way to go to improve the models.

Keywords

Galaxies: dwarfgalaxies: evolutiongalaxies: individual: Boötes ISegue 1stars: abundances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 164 - 169
Copyright
Copyright © International Astronomical Union 2016 

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