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Star formation history and the SED of galaxies: insights from resolved stars

Published online by Cambridge University Press:  17 August 2012

Benjamin D. Johnson  and
Daniel R. Weisz
Benjamin D. Johnson
Affiliation:
UPMC-CNRS, UMR7095, Institut d'Astrophysique de Paris, F-75014, Paris, France email: johnson@iap.fr
Daniel R. Weisz
Affiliation:
Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195-1580
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Abstract

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The star formation history (SFH) of galaxies is a principle uncertainty in SED modeling, and simple parameterizations of the SFH in typical SED fitting techniques may introduce biases in the resulting derived parameters. It is possible to constrain the SFH of galaxies more tightly through the observations of resolved stellar colour-magnitude diagrams with HST. This work is a first attempt to combine constraints on galaxy SFH from resolved stars with broadband SED modeling from the UV to the IR. This combination allows for the effects of different realistic SFHs on the SED to be quantified.

Keywords

galaxies:dwarfgalaxies:fundamental parameters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S284: The Spectral Energy Distribution of Galaxies , September 2011 , pp. 59 - 62
Copyright
Copyright © International Astronomical Union 2012

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