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Stellar populations in HII galaxies

Published online by Cambridge University Press:  24 November 2004

Pieter Westera ,
F. Cuisinier ,
E. Telles  and
C. Kehrig
Pieter Westera
Affiliation:
Observatório do Valongo, Universidade Federal do Rio de Janeiro, Brazil email: [email protected], [email protected]
F. Cuisinier
Affiliation:
Observatório do Valongo, Universidade Federal do Rio de Janeiro, Brazil email: [email protected], [email protected]
E. Telles
Affiliation:
Observatório Nacional, Rio de Janeiro, Brazil email: [email protected], [email protected]
C. Kehrig
Affiliation:
Observatório Nacional, Rio de Janeiro, Brazil email: [email protected], [email protected]
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Abstract

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We analyse the stellar content of a large number of HII galaxies based on the continuum and absorption features of their spectra using population synthesis methods, in order to gain information about the star formation histories of these objects. We find that all galaxies of our sample contain an old stellar population (≥1 Gyr) that dominates the stellar mass, and in a great majority of these, we also found evidence for an intermediate-age population ≥100 Myr apart from the presently bursting, ionizing young generation ≤107 yrs.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 217 - 218
Copyright
© 2004 International Astronomical Union