Spectral indexes in HII galaxies (Westera+, 2004)

Details Spectral indexes in HII galaxies (Westera+, 2004) Spectral indexes in HII galaxies (Westera+, 2004)

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ycat..34230133w&link_type=abstract

VizieR On-line Data Catalog: J/A+A/423/133. Originally published in: 2004A&A...423..133W

Physics

Galaxies: Spectra, H Ii Regions

Scientific paper

We analyse the stellar content of a large number of HII galaxies from the continua 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 (>=1Gyr) that dominates the stellar mass, and in a majority of these we also found evidence for an intermediate-age population >=50Myr apart from the presently bursting, ionizing young generation <=107yr.
(2 data files).

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