Stellar population synthesis for the spectra of blue compact galaxies

Details Stellar population synthesis for the spectra of blue compact galaxies Stellar population synthesis for the spectra of blue compact galaxies

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998cha%26a..22..145k&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 22, Issue 2, p. 145-154.

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

The method of population synthesis based on a grid of spectra of star clusters of different ages and metallicities is applied to four BCGs. Our results indicate that the BCGs are old galaxies in which star formation occurs in short spurts separated by long quiescent phases. There are unseen mass in BCGs, at least part of which is due to old populations. The amount of reddening we found is significantly smaller than was found from the Balmer line ratio, and this can be explained by a model of foreground dust clumps, with different covering factors for the gas and stars.

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