AGN clustering in the local Universe: an unbiased picture from Swift-BAT

Abstract

We present the clustering measurement of hard X-ray selected AGN in the local Universe. We used a sample of 199 sources spectroscopically confirmed detected by Swift-BAT in its 15-55 keV all-sky survey. We measured the real space projected auto-correlation function and detected a signal significant on projected scales lower than 200 Mpc/h. We measured a correlation length of r0=5.56+0.49-0.43 Mpc/h and a slope γ=1.64-0.08 -0.07. We also measured the auto-correlation function of Type I and Type II AGN and found higher correlation length for Type I AGN. We have a marginal evidence of luminosity dependent clustering of AGN, as we detected a larger correlation length of luminous AGN than that of low luminosity sources. The corresponding typical host DM halo masses of Swift-BAT are log(MDMH) 12-14 h^-1 M/M_sun, depending on the subsample. For the whole sample we measured log(MDMH)\sim 13.15 h-1 M/M_sun which is the typical mass of a galaxy group. We estimated that the local AGN population has a typical lifetime tau_AGN \sim 0.7 Gyr, it is powered by SMBH with mass MBH \sim 1-10x10^8 M_\odot and accreting with very low efficiency, log(epsilon)-2.0. We also conclude that local AGN host galaxies are typically red-massive galaxies with stellar mass of the order 2-80x10^10 h^-1 M_sun. We compared our results with clustering predictions of merger-driven AGN triggering models and found a good agreement.

13 pages 3 figures, accepted by ApJ Letters

References in corpus (8)

• Absorption Properties and Evolution of Active Galactic Nuclei
• 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
• The Co-Formation of Spheroids and Quasars Traced in their Clustering
• BAT X-ray Survey - III: X-ray Spectra and Statistical Properties
• The Spatial Clustering of ROSAT All-Sky Survey AGN: I. The cross-correlation function with SDSS Luminous Red 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

Cited by in corpus (55)

• Indications of Intermediate-Scale Anisotropy of Cosmic Rays with Energy Greater Than 57 EeV in the Northern Sky Measured with the Surface Detector of the Telescope Array Experiment
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• Three years Swift-BAT Survey of AGN: reconciling theory and observations?
• BASS XXII: The BASS DR2 AGN Catalog and Data
• 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
• Detailed Shape and Evolutionary Behavior of the X-ray Luminosity Function of Active Galactic Nuclei
• Cross-Correlation of SDSS DR7 Quasars and DR10 BOSS Galaxies: The Weak Luminosity Dependence of Quasar Clustering at z~0.5
• The 60-month all-sky BAT Survey of AGN and the Anisotropy of Nearby AGN
• The most luminous quasars do not live in the most massive dark matter haloes at any redshift
• The Spatial Clustering of ROSAT All-Sky Survey AGNs III. Expanded Sample and Comparison with Optical AGNs
• LoCuSS: A Dynamical Analysis of X-ray AGN in Local Clusters
• The Spatial Clustering of ROSAT All-Sky Survey AGNs II. Halo Occupation Distribution Modeling of the Cross Correlation Function
• Occupation of X-ray selected galaxy groups by X-ray AGN
• Do We Expect Most AGN to Live in Disks?
• 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 Swift/BAT AGN Spectroscopic Survey -- IX. The Clustering Environments of an Unbiased Sample of Local AGN
• Constraining halo occupation properties of X-ray AGNs using clustering of Chandra sources in the Bootes survey region
• Clustering properties of moderate luminosity X-ray selected Type 1 and Type 2 AGN at z~3
• A Strategy to Measure the Dark Energy Equation of State using the HII galaxy Hubble Relation & X-ray AGN Clustering: Preliminary Results
• Constraints on black hole fuelling modes from the clustering of X-ray AGN
• The NuSTAR Serendipitous Survey: Hunting for The Most Extreme Obscured AGN at >10 keV
• The spatial clustering of ROSAT All-Sky Survey Active Galactic Nuclei IV. More massive black holes reside in more massive dark matter halos
• Measuring the Dark Matter Halo Mass of X-ray AGN at z~1 using photometric redshifts
• The XXL Survey: VI. The 1000 brightest X-ray point sources
• The Chandra X-ray point source catalog in the DEEP2 Galaxy Redshift Survey fields
• Exploring the halo occupation of AGN using dark-matter cosmological simulations
• The clustering of X-ray selected AGN at z=0.1
• Clustering of X-Ray-Selected AGN
• Angular correlation functions of X-ray point-like sources in the full exposure XMM-LSS field
• The AGN-galaxy-halo connection: The distribution of AGN host halo masses to z=2.5
• The cosmic web of X-ray active galactic nuclei seen through the eROSITA Final Equatorial Depth Survey (eFEDS)
• AGN environments at z<1.5 in the UKIDSS Ultra-Deep Survey
• Constraining AGN triggering mechanisms through the clustering analysis of active black holes
• Host Dark Matter Halos of WISE-selected Obscured & Unobscured Quasars: Evidence for Evolution
• Enhanced star formation in $z\sim 6$ quasar companions
• BASS. XXXVI. Constraining the Local Supermassive Black Hole - Halo Connection with BASS DR2 AGN
• The Chandra COSMOS Legacy Survey: clustering dependence of Type 2 AGN on host galaxy properties
• Clustering of gamma-ray selected 2LAC Fermi Blazars
• Semi-analytic modelling of AGNs: auto-correlation function and halo occupation
• The spatial clustering of ROSAT all-sky survey Active Galactic Nuclei: V. The evolution of broad-line AGN clustering properties in the last 6 Gyr
• The Clustering of Undetected High-redshift Black Holes and Their Signatures in Cosmic Backgrounds
• Clustering, Cosmology and a New Era of Black Hole Demographics -- II. The Conditional Luminosity Functions of Type 2 and Type 1 Active Galactic Nuclei
• Revisiting the clustering of narrow-line AGN in the local Universe: Joint dependence on stellar mass and color
• The XXL Survey XXXII. Spatial clustering of the XXL-S AGN
• Evolution of black hole and galaxy growth in a semi-numerical galaxy formation model
• Clustering, Cosmology and a New Era of Black Hole Demographics -- I. The Conditional Luminosity Function of Active Galactic Nuclei
• Constraining the X-ray AGN halo occupation distribution: implications for eROSITA
• Are there more galaxies than we see around high-$z$ quasars?
• Imprints of the super-Eddington accretion on the quasar clustering
• Clustering Measurements of broad-line AGNs: Review and Future
• Large-scale clustering of buried X-ray AGN: Trends in AGN obscuration and redshift evolution
• On the Dark Matter Halos of Optical and IR-selected AGN in the Local Universe
• AGN with massive black holes have closer galactic neighbors: k-Nearest-Neighbor statistics of an unbiased sample of AGN at z~0.03
• Comparison of the spatial and the angular clustering of X-ray AGN