The ACS LCID project: overview and first results

Bibcode
2007IAUS..241..290G
DOI
10.1017/S1743921307008186
Gallart, Carme; Lcid Team
Bibliographical reference

Stellar Populations as Building Blocks of Galaxies, Proceedings of IAU Symposium #241. Edited by A. Vazdekis and R. F. Peletier. Cambridge: Cambridge University Press, 2007, pp.290-294

Advertised on:
8
2007
Number of authors
2
IAC number of authors
0
Citations
10
Refereed citations
7
Description
The star formation history (SFH) of Local Group galaxies is a powerful tool for studying their evolution, including chemical enrichment histories and stellar population gradients, which in turn may shed light on the role of reionization or Supernovae feedback in galaxy formation and evolution. In particular, isolated dwarfs are ideal laboratories since their evolution has not been complicated by the vicinity of giant galaxies. In this paper, we present the project Local Cosmology from Isolated Dwarfs (LCID), aimed at deriving detailed SFHs for a sample of Local Group isolated dwarf galaxies. To accomplish this goal we have collected, using the ACS on board the HST, color-magnitude diagrams (CMD) reaching their oldest main sequence turnoff (V~28 or M_V~+3.5) with good photometric accuracy. Some preliminary results from the CMDs are shown and briefly discussed.
Type
Non-refereed

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