The clustering of X-ray AGN at 0.5 < z < 4.5: host galaxies dictate dark matter halo mass

Abstract

We present evidence that AGN do not reside in ``special'' environments, but instead show large-scale clustering determined by the properties of their host galaxies. Our study is based on an angular cross-correlation analysis applied to X-ray selected AGN in the COSMOS and UDS fields, spanning redshifts from $z\sim 4.5$ to $z\sim 0.5$. Consistent with previous studies, we find that AGN at all epochs are on average hosted by galaxies in dark matter halos of $10^{12}-10^{13}$ M${}_{\odot }$, intermediate between star-forming and passive galaxies. We find, however, that the same clustering signal can be produced by inactive (i.e. non-AGN) galaxies closely matched to the AGN in spectral class, stellar mass and redshift. We therefore argue that the inferred bias for AGN lies in between the star-forming and passive galaxy populations because AGN host galaxies are comprised of a mixture of the two populations. Although AGN hosted by higher mass galaxies are more clustered than lower mass galaxies, this stellar mass dependence disappears when passive host galaxies are removed. The strength of clustering is also largely independent of AGN X-ray luminosity. We conclude that the most important property that determines the clustering in a given AGN population is the fraction of passive host galaxies. We also infer that AGN luminosity is likely not driven by environmental triggering, and further hypothesise that AGN may be a stochastic phenomenon without a strong dependence on environment.

arXiv comment13 pages, 10 figures

References in corpus (88)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• Cosmic Star Formation History
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Stable clustering, the halo model and nonlinear cosmological power spectra
• The Cosmic Evolution Survey (COSMOS) -- Overview
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• The Environmental Dependence of the Relations between Stellar Mass, Structure, Star Formation and Nuclear Activity in Galaxies
• The COSMOS2015 Catalog: Exploring the 1<z<6 Universe with half a million galaxies
• Formation of Massive Galaxies at High Redshift: Cold Streams, Clumpy Disks and Compact Spheroids
• The formation history of elliptical galaxies
• Spectral Energy Distributions of Hard X-ray selected AGNs in the XMDS Survey
• UltraVISTA: a new ultra-deep near-infrared survey in COSMOS
• The Luminosity and Color Dependence of the Galaxy Correlation Function
• A Spectroscopic Catalog of 10 Distant Rich Clusters of Galaxies
• New constraints on the evolution of the stellar-to-dark matter connection: a combined analysis of galaxy-galaxy lensing, clustering, and stellar mass functions from z=0.2 to z=1
• Host galaxies, clustering, Eddington ratios, and evolution of radio, X-ray, and infrared-selected AGNs
• The Chandra COSMOS Legacy survey: overview and point source catalog
• The Nature of Galaxy Bias and Clustering
• The Evolution of Galaxy Structure over Cosmic Time
• zCOSMOS - 10k-bright spectroscopic sample. The bimodality in the Galaxy Stellar Mass Function: exploring its evolution with redshift
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: II. Formation of Red Ellipticals
• Black hole variability and the star formation-AGN connection: Do all star-forming galaxies host an AGN?
• A subarcsecond resolution near-infrared study of Seyfert and `normal' galaxies: II. Morphology
• The VISTA Deep Extragalactic Observations (VIDEO) Survey
• The Chandra COSMOS Legacy survey: optical/IR identifications
• The Subaru/XMM-Newton Deep Survey (SXDS) - II. Optical Imaging and Photometric Catalogs
• The abundance and clustering of dark haloes in the standard Lambda CDM cosmogony
• The Luminosity Function of X-ray Selected Active Galactic Nuclei: Evolution of Supermassive Black Holes at High Redshift
• The dependence of clustering on galaxy properties
• Clustering of Low-Redshift (z <= 2.2) Quasars from the Sloan Digital Sky Survey
• The Chandra COSMOS Survey: III. Optical and Infrared Identification of X-ray Point Sources
• Quasar Clustering from SDSS DR5: Dependences on Physical Properties
• The Structures of Distant Galaxies I: Galaxy Structures and the Merger Rate to z~3 in the Hubble Ultra-Deep Field
• Timing the starburst-AGN connection
• Enhanced star formation rates in AGN hosts with respect to inactive galaxies from PEP-Herschel observations
• A remarkably flat relationship between the average star formation rate and AGN luminosity for distant X-ray AGN
• The Subaru/XMM-Newton Deep Survey (SXDS): III. X-Ray Data
• Galaxy clustering in the NEWFIRM Medium Band Survey: the relationship between stellar mass and dark matter halo mass at 1 < z < 2
• Clustering of intermediate redshift quasars using the final SDSS III-BOSS sample
• The Redshift and Mass Dependence on the Formation of The Hubble Sequence at z>1 from CANDELS/UDS
• Are Compton-Thick AGN the Missing Link Between Mergers and Black Hole Growth?
• The evolution of post-starburst galaxies from z=2 to z= 0.5
• The XMM-Newton Wide field survey in the COSMOS field: redshift evolution of AGN bias and subdominant role of mergers in triggering moderate luminosity AGN at redshift up to 2.2
• Host galaxies of luminous z$\sim$0.6 quasars: Major mergers are not prevalent at the highest AGN luminosities
• The Angular Correlation Function and Hierarchical Moments of 70000 Faint Galaxies to R=23.5
• On the Relationship between Galaxy Formation and Quasar Evolution
• X-rays across the galaxy population I: tracing the main sequence of star formation
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Luminosity and stellar mass dependence of galaxy clustering at 0.5<z<1.1
• The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.09
• Galaxy pairs in the Sloan digital sky survey - VII: The merger -- luminous infra-red galaxy connection
• Studying the emergence of the red sequence through galaxy clustering: host halo masses at z > 2
• The SCUBA-2 Cosmology Legacy Survey: The clustering of submillimetre galaxies in the UKIDSS UDS field
• Massive post-starburst galaxies at z > 1 are compact proto-spheroids
• CANDELS: Elevated Black Hole Growth in the Progenitors of Compact Quiescent Galaxies at z~2
• X-UDS: The Chandra Legacy Survey of the UKIDSS Ultra Deep Survey Field
• The Spatial Clustering of ROSAT All-Sky Survey AGNs III. Expanded Sample and Comparison with Optical AGNs
• A new method for classifying galaxy SEDs from multi-wavelength photometry
• The Spatial Clustering of ROSAT All-Sky Survey AGNs II. Halo Occupation Distribution Modeling of the Cross Correlation Function
• Excess AGN Activity in the z=2.30 Protocluster in HS 1700+64
• Clustering, Bias and the Accretion Mode of X-ray selected AGN
• PRIMUS + DEEP2: Clustering of X-ray, Radio and IR-AGN at z~0.7
• The evolution of the star formation activity per halo mass up to redshift ~ 1.6 as seen by Herschel
• The Swift/BAT AGN Spectroscopic Survey -- IX. The Clustering Environments of an Unbiased Sample of Local AGN
• Active Galactic Nuclei in Groups and Clusters of Galaxies: Detection and Host Morphology
• The VIMOS-VLT Deep Survey. The dependence of clustering on galaxy stellar mass at z~1
• Enhancement of AGN in a protocluster at z=1.6
• The redshift evolution of major merger triggering of luminous AGN: a slight enhancement at z$\sim$2
• The Redshift Evolution of Clustering in the HDF
• PRIMUS+DEEP2: The Dependence of Galaxy Clustering on Stellar Mass and Specific Star Formation Rate at 0.2 < z < 1.2
• ASCA observations of Deep ROSAT fields - II. The 2-10keV AGN luminosity function
• The clustering properties of radio-selected AGN and star-forming galaxies up to redshifts z~3
• The prevalence of AGN feedback in massive galaxies at z~1
• Does black-hole growth depend on the cosmic environment?
• The Galaxy Stellar Mass Function of X-ray detected groups: environmental dependence of galaxy evolution in the COSMOS survey
• Strong Clustering of Lyman Break Galaxies around Luminous Quasars at z~4
• Differences in the AGN Populations of Groups and Clusters: Clues to AGN Evolution
• Large Scale Structure of the Universe
• The clustering of X-ray selected AGN at z=0.1
• The Subaru-XMM-Newton Deep Survey (SXDS) VIII.: Multi-wavelength Identification, Optical/NIR Spectroscopic Properties, and Photometric Redshifts of X-ray Sources
• AGN environments at z<1.5 in the UKIDSS Ultra-Deep Survey
• The Chandra COSMOS Legacy Survey: Clustering of X-ray selected AGN at 2.9<z<5.5 using photometric redshift Probability Distribution Functions
• A $Chandra-Swift$ View of Point Sources in Hickson Compact Groups: High AGN fraction but a dearth of strong AGNs
• The AGN Population in X-ray Selected Galaxy Groups at $0.5<z<1.1$
• The Quasar-LBG Two-point Angular Cross-correlation Function at z ~ 4 in the COSMOS Field
• The Halo Masses of Galaxies to $z\sim 3$: A Hybrid Observational and Theoretical Approach

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