Star formation histories of local group dwarf galaxies
We present the study of the star formation histories (SFHs) of a sample of Local Group dwarf galaxies (LGDGs), via the analysis and modelling, with the means of an evolutionary stellar population synthesis of their colour-magnitude (CM) diagrams. It appears that important parameters to describe the...
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Published in | Astrophysics and space science Vol. 284; no. 2; pp. 589 - 594 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Nature B.V
01.01.2003
Springer Verlag |
Subjects | |
Online Access | Get full text |
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Summary: | We present the study of the star formation histories (SFHs) of a sample of Local Group dwarf galaxies (LGDGs), via the analysis and modelling, with the means of an evolutionary stellar population synthesis of their colour-magnitude (CM) diagrams. It appears that important parameters to describe the SFHs are star formation rate (SFR) and duration of star formation. We find a possible correlation between the mass and the SFRs. The correlation might be the origin of the observed luminosity-metallicity relation in the LGDGs. A well-defined correlation between the durations of star formation and the distance from M31 or the Galaxy indicates that the current early-type dwarf galaxies should have been transformed from late-type by strong tidal force of the massive galaxies. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-2 ObjectType-Feature-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Conference-3 SourceType-Scholarly Journals-1 |
ISSN: | 0004-640X 1572-946X |
DOI: | 10.1023/A:1024058022841 |