Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21536502a&link_type=abstract
American Astronomical Society, AAS Meeting #215, #365.02; Bulletin of the American Astronomical Society, Vol. 42, p.554
Astronomy and Astrophysics
Astronomy
Scientific paper
The Great Observatories All-sky LIRG Survey (GOALS) combines data from NASA's Spitzer, Chandra, Hubble and GALEX observatories, together with ground-based data, into a comprehensive imaging and spectroscopic survey of over 200 low-redshift (z < 0.09) Luminous Infrared Galaxies (LIRGs). The GOALS galaxies span the full range of nuclear spectral types and interaction stages. An important aspect of GOALS is a direct comparison of the mid-infrared spectral properties and the global UV emission in LIRGs. While most LIRGs appear powered by star formation, nearly 25% show evidence for AGN in their Spitzer spectra. Over the entire sample, we estimate that about 12% of the bolometric luminosity is generated by AGN. The UV properties are extremely diverse, with IR/FUV flux ratios ranging from 12-2600. We will discuss the relation between the IR and UV properties of the GOALS galaxies, and the implications for studying LIRGs at high redshift.
Armus Lee
Chan Ben
Evans Aaron
Haan Sebastian
Howell John
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