A large population of mid-infrared selected, obscured active galaxies in the Bootes field

Details A large population of mid-infrared selected, obscured active galaxies in the Bootes field A large population of mid-infrared selected, obscured active galaxies in the Bootes field

2007-08-27

arxiv.org/abs/0708.3678v2

Astrophys.J. 671 (2007) 1365-1387

Astronomy and Astrophysics

Astrophysics

23 emulateapj pages, 24 figures, 4 tables, v2: minor changes match version to appear in ApJ

Scientific paper

10.1086/523082

We identify a population of 640 obscured and 839 unobscured AGNs at redshifts 0.7~80%. The observed numbers of IRAGNs are comparable to predictions from previous X-ray, optical, and IR luminosity functions, for the given redshifts and IRAC flux limits. We observe a bimodal distribution in R-[4.5] color, suggesting that luminous IR-selected AGNs have either low or significant dust extinction, which may have implications for models of AGN obscuration.

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