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The star formation histories of Low Surface Brightness galaxies

Published online by Cambridge University Press:  12 April 2016

E.F. Bell ,
R.G. Bower ,
R.S. de Jong ,
B.J. Rauscher ,
D. Barnaby ,
D.A. Harper Jr. ,
M. Herald  and
R.F. Loewenstein
E.F. Bell
Affiliation:
Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK
R.G. Bower
Affiliation:
Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK
R.S. de Jong
Affiliation:
Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK
B.J. Rauscher
Affiliation:
Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK
D. Barnaby
Affiliation:
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA
D.A. Harper Jr.
Affiliation:
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA
M. Herald
Affiliation:
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA
R.F. Loewenstein
Affiliation:
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA

Abstract

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Near-infrared images of a sample of red, blue and giant low surface brightness disk galaxies (LSBGs) were combined with optical data with the aim of constraining their star formation histories. Most LSBGs have strong colour gradients consistent with mean stellar age gradients. We find that LSBGs have a large range of ages and metallicities, spanning those observed in normal disk galaxies. In particular, red and blue LSBGs have very different star formation histories and represent two independent routes to low B band surface brightness. Blue LSBGs are well described by models with low, roughly constant star formation rates, whereas red LSBGs are better described by a ‘faded disk’ scenario.

Type
The evolution of Low Surface Brightness galaxies
Information
International Astronomical Union Colloquium , Volume 171: The Low Surface Brightness Universe , 1999 , pp. 245 - 252
Copyright
Copyright © Astronomical Society of the Pacific 1999

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