Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560211b&link_type=abstract
American Astronomical Society, AAS Meeting #215, #602.11; Bulletin of the American Astronomical Society, Vol. 36, p.1122
Astronomy and Astrophysics
Astronomy
Scientific paper
The advent of the Spitzer Space Telescope has revolutionized the field of IR astronomy by resolving a significant fraction of the Cosmic IR background at wavelengths up to 160um. A new population of z 2 ULIRGs has been identified via the combination of Spitzer IR imaging with ground-based imaging in the optical. In this contribution, we undertake a systematic comparison of the intrinsic properties of an important subset of this population, dust-obscured galaxies (DOGs), and another z 2 ULIRG population that is well-studied, sub-millimeter galaxies (SMGs). We utilize far-IR + radio imaging of DOGs to estimate star formation rates and mid-IR + optical imaging to estimate stellar masses and thereby obtain specific star formation rates. We compare our results with predictions from hydrodynamical N-body simulations of quiescent and merging systems to place contraints on the relative evolutionary status of the 24um and sub-mm selected z 2 ULIRG populations.
Bussmann Robert S.
Desai Vandana
Dey Arjun
Melbourne Jason
Soifer Thomas B.
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