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Paper: A Large Population of Optically Unidentified AGNs in Dust-Obscured Starburst Galaxies
Volume: 408, The Starburst−AGN Connection
Page: 59
Authors: Goulding, A.D.; Alexander, D.M.
Abstract: We present the first volume-limited Spitzer-IRS search for AGN activity in the most bolometrically luminous galaxies (LIR ≈ (0.3−20) × 1010 Lʘ) to D < 15 Mpc. We unambiguously identify AGNs in ≈ 27% of the galaxies, ≈ 50% of which are not identified with optical spectroscopy. We discover that the optically unidentified AGNs have comparable luminosities to the optically identified AGNs and are hosted in a wide range of galaxy types (S0−Sd). However, by constrast, we find that optically unidentifed AGNs are more likely to reside in heavily dust-obscured starburst galaxies than optically identified AGNs.
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