Chemical Evolution of Late-type Dwarf Galaxies - The windy starburst dwarfs NGC 1569 and NGC 1705

Details Chemical Evolution of Late-type Dwarf Galaxies - The windy starburst dwarfs NGC 1569 and NGC 1705 Chemical Evolution of Late-type Dwarf Galaxies - The windy starburst dwarfs NGC 1569 and NGC 1705

2004-11-23

arxiv.org/abs/astro-ph/0411635v1

Astronomy and Astrophysics

Astrophysics

7 pages, 2 figures, to appear in the Proceedings of the Conference "Starbursts - From 30 Doradus to Lyman break galaxies", edi

Scientific paper

Thanks to the capabilities of modern telescopes and instrumentation, it is now possible to resolve single stars in external dwarf galaxies, provided they are bright enough. For galactic regions with deep enough photometry, detailed colour-magnitude diagrams are constructed, from which the star formation history and the initial mass function can be inferred by comparison with synthetic diagrams. Both the star formation history and the initial mass function are free parameters of galactic chemical evolution models. In this contribution we show how constraining them through high resolution photometry in principle allows us to better understand the mechanisms of dwarf galaxy formation and evolution.

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