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Stellar ages and star-forming properties of galaxies in a dense group around IC 65

Published online by Cambridge University Press:  01 December 2006

J. Vennik  and
U. Hopp
J. Vennik
Affiliation:
Tartu Observatory, 61602 Tõravere, Estonia email: vennik@aai.ee
U. Hopp
Affiliation:
Universitätssternwarte München, Scheiner Str. 1, D 81679 München, Germany email: hopp@usm.uni-muenchen.de
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Abstract

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We analyse the star-forming (SF) properties of the two brightest galaxies in the IC 65 group of galaxies and that of the four newly detected dwarf galaxies in the area of the group. The dIrr galaxies around the IC 65 contain a number of HII regions which show a range of stellar ages, and provide an evidence of propagating SF. The two brightest group galaxies show SF rates of ∼ 1 − 2 M⊙ yr−1, and can fuel the current SF level for about the next 3 – 7 Gyr.

Keywords

galaxies: dwarfphotometrystellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 525 - 526
Copyright
Copyright © International Astronomical Union 2007

References

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