Detailed Shape and Evolutionary Behavior of the X-ray Luminosity Function of Active Galactic Nuclei

Abstract

We construct the rest-frame 2--10 keV intrinsic X-ray luminosity function of Active Galactic Nuclei (AGNs) from a combination of X-ray surveys from the all-sky Swift BAT survey to the Chandra Deep Field-South. We use ~3200 AGNs in our analysis, which covers six orders of magnitude in flux. The inclusion of the XMM and Chandra COSMOS data has allowed us to investigate the detailed behavior of the XLF and evolution. In deriving our XLF, we take into account realistic AGN spectrum templates, absorption corrections, and probability density distributions in photometric redshift. We present an analytical expression for the overall behavior of the XLF in terms of the luminosity-dependent density evolution, smoothed two power-law expressions in 11 redshift shells, three-segment power-law expression of the number density evolution in four luminosity classes, and binned XLF. We observe a sudden flattening of the low luminosity end slope of the XLF slope at z>~0.6. Detailed structures of the AGN downsizing have been also revealed, where the number density curves have two clear breaks at all luminosity classes above log LX>43. The two break structure is suggestive of two-phase AGN evolution, consisting of major merger triggering and secular processes.

39 Pages, 9 figures. ApJ in press

References in corpus (31)

• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The Cosmic Evolution Survey (COSMOS) -- Overview
• An Observational Determination of the Bolometric Quasar Luminosity Function
• Toward the Standard Population Synthesis Model of the X-Ray Background: Evolution of X-Ray Luminosity and Absorption Functions of Active Galactic Nuclei Including Compton-Thick Populations
• The Illustris simulation: the evolving population of black holes across cosmic time
• The Chandra COSMOS Survey, I: Overview and Point Source Catalog
• Photometric redshift and classification for the XMM-COSMOS sources
• Absorption Properties and Evolution of Active Galactic Nuclei
• The Cosmic Evolution Survey (COSMOS): Subaru Observations of the HST COSMOS Field
• The XMM-Newton wide-field survey in the COSMOS field: I. Survey description
• Obscuration-dependent evolution of Active Galactic Nuclei
• The XMM-Newton wide-field survey in the COSMOS field. The point-like X-ray source catalogue
• The Luminosity Function of X-ray Selected Active Galactic Nuclei: Evolution of Supermassive Black Holes at High Redshift
• The XMM-Newton wide-field survey in the COSMOS field: III. optical identification and multiwavelength properties of a large sample of X-ray selected sources
• The XMM-Newton wide-field survey in the COSMOS field II: X-ray data and the logN-logS
• The VVDS type-1 AGN sample: The faint end of the luminosity function
• Modeling the cosmological co-evolution of supermassive black holes and galaxies: I. BH scaling relations and the AGN luminosity function
• The spatial clustering of X-ray selected AGN in the XMM-COSMOS field
• Compton thick active galactic nuclei in Chandra surveys
• The cosmological properties of AGN in the XMM-Newton Hard Bright Survey
• The XMM-Newton Serendipitous Survey. VI. The X-ray Luminosity Function
• The Hard X-Ray Luminosity Function of High-Redshift ($3<z\lesssim 5$) Active Galactic Nuclei
• XMM-Newton observations of the Lockman Hole: X-ray source catalogue and number counts
• Compton Thick AGN in the XMM-COSMOS survey
• The XMM-Newton Serendipitous Survey V. Optical identification of the XMM-Newton Medium sensitivity Survey (XMS)
• The Spatial Clustering of ROSAT All-Sky Survey AGN: I. The cross-correlation function with SDSS Luminous Red Galaxies
• The OPTX Project I: The Flux and Redshift Catalogs for the CLANS, CLASXS, and CDF-N fields
• Spatial Correlation Function of the Chandra Selected Active Galactic Nuclei
• The XMM-Newton wide-field survey in the COSMOS field: V. Angular Clustering of the X-ray Point Sources
• The X-ray luminosity function and number counts of spiral galaxies
• The HELLAS2XMM survey.VIII. Optical identifications of the extended sample

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