Occupation of X-ray selected galaxy groups by X-ray AGN

Abstract

We present the first direct measurement of the mean Halo Occupation Distribution (HOD) of X-ray selected AGN in the COSMOS field at z < 1, based on the association of 41 XMM and 17 C-COSMOS AGN with member galaxies of 189 X-ray detected galaxy groups from XMM and Chandra data. We model the mean AGN occupation in the halo mass range logM_200[Msun] = 13-14.5 with a rolling-off power-law with the best fit index alpha = 0.06(-0.22;0.36) and normalization parameter f_a = 0.05(0.04;0.06). We find the mean HOD of AGN among central galaxies to be modelled by a softened step function at logMh > logMmin = 12.75 (12.10,12.95) Msun while for the satellite AGN HOD we find a preference for an increasing AGN fraction with Mh suggesting that the average number of AGN in satellite galaxies grows slower (alpha_s < 0.6) than the linear proportion (alpha_s = 1) observed for the satellite HOD of samples of galaxies. We present an estimate of the projected auto correlation function (ACF) of galaxy groups over the range of r_p = 0.1-40 Mpc/h at <z> = 0.5. We use the large-scale clustering signal to verify the agreement between the group bias estimated by using the observed galaxy groups ACF and the value derived from the group mass estimates. We perform a measurement of the projected AGN-galaxy group cross-correlation function, excluding from the analysis AGN that are within galaxy groups and we model the 2-halo term of the clustering signal with the mean AGN HOD based on our results.

Accepted for publication in The Astrophysical Journal

References in corpus (26)

• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• The Chandra COSMOS Survey, I: Overview and Point Source Catalog
• Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements
• The bulk of the black hole growth since z~1 occurs in a secular universe: No major merger-AGN connection
• 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
• The XMM-Newton wide-field survey in the COSMOS field: VI. Statistical properties of clusters of galaxies
• The XMM-Newton wide-field survey in the COSMOS field. The point-like X-ray source catalogue
• Fueling Low-Level AGN Activity Through the Stochastic Accretion of Cold Gas
• HST WFC3/IR Observations of Active Galactic Nucleus Host Galaxies at z~2: Supermassive Black Holes Grow in Disk Galaxies
• The XMM-Newton wide-field survey in the COSMOS field II: X-ray data and the logN-logS
• Galaxies in X-ray Groups. II. A Weak Lensing Study of Halo Centering
• The VLA-COSMOS Survey: III. Further Catalog Analysis and the Radio Source Counts
• AEGIS: Host Galaxy Morphologies of X-ray and Infrared-selected AGN at 0.2 < z < 1.2
• Luminosity and redshift dependent quasar clustering
• The spatial clustering of X-ray selected AGN in the XMM-COSMOS field
• The Co-Formation of Spheroids and Quasars Traced in their Clustering
• The XMM-Newton Serendipitous Survey. VI. The X-ray Luminosity Function
• Supermassive Black Holes in the Hierarchical Universe: A General Framework and Observational Tests
• The Spatial Clustering of ROSAT All-Sky Survey AGN: I. The cross-correlation function with SDSS Luminous Red Galaxies
• Chandra High resolution Observations of CID-42, a candidate recoiling SMBH
• Contribution of Stellar Tidal Disruptions to the X-Ray Luminosity Function of Active Galaxies
• 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
• X-ray selected AGN in groups at redshifts z~1

Cited by in corpus (60)

• Discovery of a galaxy cluster with a violently starbursting core at z=2.506
• The DEIMOS 10k spectroscopic survey catalog of the COSMOS field
• Detailed Shape and Evolutionary Behavior of the X-ray Luminosity Function of Active Galactic Nuclei
• Chandra centres for COSMOS X-ray galaxy groups: Differences in stellar properties between central dominant and offset brightest group galaxies
• A New RASS Galaxy Cluster Catalog with Low Contamination Extending to $z\sim 1$ in the DES Overlap Region
• SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV
• PRIMUS + DEEP2: Clustering of X-ray, Radio and IR-AGN at z~0.7
• The Swift/BAT AGN Spectroscopic Survey -- IX. The Clustering Environments of an Unbiased Sample of Local AGN
• CODEX clusters. The Survey, the Catalog, and Cosmology of the X-ray Luminosity Function
• LoCuSS: The infall of X-ray groups onto massive clusters
• Mining the gap: evolution of the magnitude gap in X-ray galaxy groups from the 3 square degree XMM coverage of CFHTLS
• The Dark Matter Halos of Moderate Luminosity X-ray AGN as Determined from Weak Gravitational Lensing and Host Stellar Masses
• Ultra-deep catalog of X-ray groups in the Extended Chandra Deep Field South
• Measuring the Dark Matter Halo Mass of X-ray AGN at z~1 using photometric redshifts
• Black Hole Demography: From scaling relations to models
• Photometric redshifts for galaxies in the Subaru Hyper Suprime-Cam and unWISE and a catalogue of identified clusters of galaxies
• Does black-hole growth depend on the cosmic environment?
• Weak Lensing Calibrated M-T Scaling Relation of Galaxy Groups in the COSMOS Field
• Type 2 AGN host galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching
• Exploring the halo occupation of AGN using dark-matter cosmological simulations
• The Halo Occupation Distribution of X-ray-Bright Active Galactic Nuclei: A Comparison with Luminous Quasars
• The Contribution of z<6 Sources to the Spatial Coherence in the Unresolved Cosmic near-Infrared and X-ray Backgrounds
• Spatial clustering and halo occupation distribution modeling of local AGN via cross-correlation measurements with 2MASS galaxies
• Investigating evidence for different black hole accretion modes since redshift z~1
• Environmental Dependence of Galactic Properties Traced by Ly$\alpha$ Forest Absorption: Diversity among Galaxy Populations
• Large scale clustering measurements with photometric redshifts: comparing the dark matter halos of X-ray AGN, star-forming and passive galaxies at z~1
• The clustering amplitude of X-ray selected AGN at z=0.8: Evidence for a negative dependence on accretion luminosity
• The environmental properties of radio-emitting AGN
• Constraining AGN triggering mechanisms through the clustering analysis of active black holes
• The dependence of the X-ray AGN clustering on the properties of the host galaxy
• AGN and QSOs in the eROSITA All-Sky Survey -- Part II: The large-scale structure
• Brightest X-ray clusters of galaxies in the CFHTLS wide fields: Catalog and optical mass estimator
• A Direct Measurement of the Mean Occupation Function of Quasars: Breaking Degeneracies between Halo Occupation Distribution Models
• Enhanced star formation in $z\sim 6$ quasar companions
• Building robust AGN mock catalogs to unveil black hole evolution and for survey planning
• Galaxies in X-ray Groups. III. Satellite Color and Morphology Transformations
• The evolution of star formation activity in galaxy groups
• BASS. XXXVI. Constraining the Local Supermassive Black Hole - Halo Connection with BASS DR2 AGN
• The AGN Population in X-ray Selected Galaxy Groups at $0.5<z<1.1$
• Non-Axisymmetric Structure in the Satellite Dwarf Galaxy NGC2976: Implications for its Dark/Bright Mass Distribution and Evolution
• Effect of richness on AGN and star formation activities in SDSS galaxy groups
• Kinematic unrest of low mass galaxy groups
• Brightest group galaxies-II: the relative contribution of BGGs to the total baryon content of groups at z<1.3
• The Chandra COSMOS Legacy Survey: clustering dependence of Type 2 AGN on host galaxy properties
• Semi-analytic modelling of AGNs: auto-correlation function and halo occupation
• Can AGN and galaxy clusters explain the surface brightness fluctuations of the cosmic X-ray background?
• The XMM-Newton Wide Field Survey in the COSMOS Field: Clustering Dependence of X-ray Selected AGN on Host Galaxy Properties
• Clustering of CODEX clusters
• Cosmic evolution of the incidence of Active Galactic Nuclei in massive clusters: Simulations versus observations
• Environmental Effects on AGN activity via Extinction-free Mid-Infrared Census
• The X-ray Zurich Environmental Study (X-ZENS). I. Chandra and XMM-Newton observations of AGNs in galaxies in nearby groups
• Toward the low-scatter selection of X-ray clusters: Galaxy cluster detection with eROSITA through cluster outskirts
• X-ray cluster cosmology
• Constraining the X-ray AGN halo occupation distribution: implications for eROSITA
• Are there more galaxies than we see around high-$z$ quasars?
• The role of scatter and satellites in shaping the large-scale clustering of X-ray AGN as a function of host galaxy stellar mass
• The impact of AGN X-ray selection on the AGN halo occupation distribution
• Mean Occupation Function of High Redshift Quasars from the Planck Cluster Catalog
• Fraction of the X-ray selected AGNs with optical emission lines in galaxy groups
• Exploring the halo occupation distribution for moderate X-ray luminosity active galactic nuclei in the EAGLE cosmological simulation