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Far-Ultraviolet Observations of Outflows from Infrared-Luminous Galaxies

Published online by Cambridge University Press:  21 March 2013

Claus Leitherer ,
Rupali Chandar ,
Christy A. Tremonti  and
Aida Wofford
Claus Leitherer
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA email: [email protected], [email protected]
Rupali Chandar
Affiliation:
The University of Toledo, Dept. of Physics and Astronomy, Toledo, OH 43606, USA email: [email protected]
Christy A. Tremonti
Affiliation:
University of Wisconsin, Dept. of Astronomy, 475 N. Charter St., Madison, WI 53706, USA email: [email protected]
Aida Wofford
Affiliation:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA email: [email protected], [email protected]
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Abstract

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We have obtained ultraviolet spectra between 1150 and 1450 Å of four ultraviolet-bright, infrared-luminous starburst galaxies. Our selected sight-lines towards the starburst nuclei probe the conditions in the starburst-driven outflows. We detect outflowing gas with velocities of up to ∼900 km s−1. It is likely that the outflows are a major source of metal enrichment of the galaxies' halos. The mass outflow rates of several tens of M⊙ yr−1 are similar to the star-formation rates. The outflows may quench star formation and ultimately regulate the starburst.

Keywords

galaxies: halos — intergalactic medium — galaxies: starburst — ultraviolet: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S292: Molecular Gas, Dust, and Star Formation in Galaxies , August 2012 , pp. 367 - 370
Copyright
Copyright © International Astronomical Union 2013

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