2013IAUS..292..367L
Far-Ultraviolet Observations of Outflows from Infrared-Luminous Galaxies
Leitherer, Claus ( Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA ); Chandar, Rupali ( The University of Toledo, Dept. of Physics and Astronomy, Toledo, OH 43606, USA ); Tremonti, Christy A. ( University of Wisconsin, Dept. of Astronomy, 475 N. Charter St., Madison, WI 53706, USA ); Wofford, Aida ( Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA ) show affiliations
Proceedings of the International Astronomical Union, Volume 292, pp. 367-370
Published in Mar 2013
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:
Free Keywords: astronomy uv; galaxies halos; galaxies intergalactic medium; galaxies starburst; galaxies: halos; galaxies: starburst; intergalactic medium; ultraviolet: ISM
2013: International Astronomical Union
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