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The ACS LCID project: accurate measurements of the full star formation history in low metallicity, isolated, Local Group dwarf galaxies

Published online by Cambridge University Press:  01 June 2008

Matteo Monelli
Matteo Monelli
Affiliation:
Instituto de Astrofísica de Canarias, C/ Vía Láctea, 38205, La Laguna, Tenerife, Spain email: monelli@iac.es
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Abstract

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We present here the latest results of the LCID project (Local Cosmology from Isolated Dwarfs), aimed at recovering the full star formation history (SFH) of six isolated dwarf galaxies of the Local Group (LG). Our method of analysis is based on the IAC-pop code, which derives the SFH of a resolved stellar system by comparing the observed and a model color-magnitude diagram (CMD). We summarize here basic technical issues and the main results concerning our sample of galaxies. We show that LeoA is the only object showing a clear delay in the onset of the major SF event, while all the other galaxies present a dominant component older than 10 Gyrs.

Keywords

galaxies: evolutiongalaxies: dwarf(galaxies:) Local Group
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Issue S255: Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies , June 2008 , pp. 392 - 396
Copyright
Copyright © International Astronomical Union 2008

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