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Retrieving the stellar content in distant starbursts

Published online by Cambridge University Press:  17 August 2012

Myriam A. Rodrigues ,
François Hammer  and
Mathieu Puech
Myriam A. Rodrigues
Affiliation:
European Southern Observatory, Alonso de Cordova 3107 Casilla 19001 - Vitacura -Santiago, Chile email: marodrig@eso.org GEPI, Observatoire de Paris, CNRS, University Paris Diderot 5 Place Jules Janssen, 92195 Meudon, France
François Hammer
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot 5 Place Jules Janssen, 92195 Meudon, France
Mathieu Puech
Affiliation:
GEPI, Observatoire de Paris, CNRS, University Paris Diderot 5 Place Jules Janssen, 92195 Meudon, France
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Abstract

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In starburst galaxies, the light emitted by the young and massive stars dominates the photon budget along most of the SED and hides the old and intermediate stellar populations. The fraction of old stars and the stellar mass are systematically underestimated by current methods (Wuyts et al. (2009)). We have implemented a new method to retrieve stellar masses and stellar populations in distant galaxies from photometry and spectral features. The method uses a complex SFH description and a new constraint has been introduced: the star-formation rate (SFR).

Keywords

galaxies: high-redshiftgalaxies: photometrygalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S284: The Spectral Energy Distribution of Galaxies , September 2011 , pp. 218 - 220
Copyright
Copyright © International Astronomical Union 2012

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