Dense Molecular Gas in the ISM of Luminous Infrared Galaxies

Details Dense Molecular Gas in the ISM of Luminous Infrared Galaxies Dense Molecular Gas in the ISM of Luminous Infrared Galaxies

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.9904n&link_type=abstract

American Astronomical Society Meeting 205, #99.04; Bulletin of the American Astronomical Society, Vol. 36, p.1507

Astronomy and Astrophysics

Astronomy

Scientific paper

The source of infrared luminosity in infrared luminous galaxies is a hotly debated issue. While it is clear that starbursts play a large role in powering these galaxies, the relative importance of (possible) dust enshrouded AGN is unknown. Here we report CO (J=3-2) emission in 11 luminous infrared galaxies obtained with the Steward Observatory/University of Arizona Heinrich Hertz Telescope on Mt. Graham. CO (J=3-2) traces warm, dense gas and is an effective probe of star formation. We investigate the relationship between infrared luminosty and star-forming gas mass. Our main result is that LIR ˜ M0.77H2,warm-dense. We will discuss the implications of these results.

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