2014ApJ...783...40G -
Astrophys. J., 783, 40 (2014/March-1)
Tracing the evolution of active galactic nuclei host galaxies over the last 9 gyr of cosmic time.
GOULDING A.D., FORMAN W.R., HICKOX R.C., JONES C., MURRAY S.S., PAGGI A., ASHBY M.L.N., COIL A.L., COOPER M.C., HUANG J.-S., KRAFT R., NEWMAN J.A., WEINER B.J. and WILLNER S.P.
Abstract (from CDS):
We present the results of a combined galaxy population analysis for the host galaxies of active galactic nuclei (AGN) identified at 0 < z < 1.4 within the Sloan Digital Sky Survey, Boötes, and DEEP2 surveys. We identified AGN in a uniform and unbiased manner at X-ray, infrared, and radio wavelengths. Supermassive black holes undergoing radiatively efficient accretion (detected as X-ray and/or infrared AGN) appear to be hosted in a separate and distinct galaxy population than AGN undergoing powerful mechanically dominated accretion (radio AGN). Consistent with some previous studies, radiatively efficient AGN appear to be preferentially hosted in modest star-forming galaxies, with little dependence on AGN or galaxy luminosity. AGN exhibiting radio-emitting jets due to mechanically dominated accretion are almost exclusively observed in massive, passive galaxies. Crucially, we now provide strong evidence that the observed host-galaxy trends are independent of redshift. In particular, these different accretion-mode AGN have remained as separate galaxy populations throughout the last 9 Gyr. Furthermore, it appears that galaxies hosting AGN have evolved along the same path as galaxies that are not hosting AGN with little evidence for distinctly separate evolution.
Abstract Copyright:
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Journal keyword(s):
galaxies: active - galaxies: evolution - galaxies: statistics - infrared: galaxies - radio continuum: galaxies - surveys - X-rays: galaxies
Simbad objects:
2
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