Spatial clustering and halo occupation distribution modeling of local AGN via cross-correlation measurements with 2MASS galaxies

Abstract

We present the clustering properties and halo occupation distribution (HOD) modelling of very low redshift, hard X-ray-detected active galactic nuclei (AGN) using cross-correlation function measurements with Two-Micron All Sky Survey galaxies. Spanning a redshift range of $0.007<z<0.037$, with a median $z=0.024$, we present a precise AGN clustering study of the most local AGN in the Universe. The AGN sample is drawn from the SWIFT/BAT 70-month and INTEGRAL/IBIS eight year all-sky X-ray surveys and contains both type I and type II AGN. We find a large-scale bias for the full AGN sample of $b=1.04_{-0.11}^{+0.10}$, which corresponds to a typical host dark matter halo mass of $M_{\mathrm{h}}^{\mathrm{typ}}=12.84_{-0.30}^{+0.22}{h}^{-1}{M}_{\odot }$. When split into low and high X-ray luminosity and type I and type II AGN subsamples, we detect no statistically significant differences in the large-scale bias parameters. However, there are differences in the small-scale clustering which are reflected in the full HOD model results. We find that low and high X-ray luminosity AGN, as well as type I and type II AGN, occupy dark matter haloes differently, with 3.4$\sigma$ and 4.0$\sigma$ differences in their mean halo masses, respectively, when split by luminosity and type. The latter finding contradicts a simple orientation-based AGN unification model. As a by-product of our cross-correlation approach, we also present the first HOD model of 2MASS galaxies.

15 pages, 13 figures, 1 table, accepted for publication in MNRAS

References in corpus (7)

• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• The clustering of narrow-line AGN in the local Universe
• Detailed Shape and Evolutionary Behavior of the X-ray Luminosity Function of Active Galactic Nuclei
• Halo masses for optically-selected and for radio-loud AGN from clustering and galaxy-galaxy lensing
• The Spatial Clustering of ROSAT All-Sky Survey AGN: I. The cross-correlation function with SDSS Luminous Red Galaxies
• Galaxy And Mass Assembly (GAMA): Active Galactic Nuclei in Pairs of Galaxies
• The Chandra COSMOS Legacy Survey: Clustering of X-ray selected AGN at 2.9<z<5.5 using photometric redshift Probability Distribution Functions

Cited by in corpus (22)

• Black hole scaling relations of active and quiescent galaxies: Addressing selection effects and constraining virial factors
• Active Galactic Nuclei and their Large-scale Structure: an eROSITA mock catalogue
• 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)
• Building robust AGN mock catalogs to unveil black hole evolution and for survey planning
• Host Dark Matter Halos of WISE-selected Obscured & Unobscured Quasars: Evidence for Evolution
• BASS. XXXVI. Constraining the Local Supermassive Black Hole - Halo Connection with BASS DR2 AGN
• Supermassive black hole fueling in IllustrisTNG: Impact of environment
• Clustering dependence on Lyman-$\alpha$ luminosity from MUSE surveys at $3<z<6$
• 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 MUSE-Wide survey: Three-dimensional clustering analysis of Lyman-$\alpha$ emitters at $3.3<z<6$
• Galaxy power spectrum and biasing results from the LOFAR Two-metre Sky Survey (first data release)
• Average X-ray properties of galaxy groups. From Milky Way-like halos to massive clusters
• The perils of stacking optically selected groups in eROSITA data. The Magneticum perspective
• Large-scale clustering of buried X-ray AGN: Trends in AGN obscuration and redshift evolution
• The impact of AGN X-ray selection on the AGN halo occupation distribution
• Constraining black hole-galaxy scaling relations from the large-scale clustering of Active Galactic Nuclei and implied mean radiative efficiency
• On the Dark Matter Halos of Optical and IR-selected AGN in the Local Universe
• Properties of environment around AGN and luminous galaxy pairs through HSC wide survey
• AGN with massive black holes have closer galactic neighbors: k-Nearest-Neighbor statistics of an unbiased sample of AGN at z~0.03
• Large-scale environments of star-forming active galactic nuclei: How black hole mass, accretion rate, and luminosity connect to dark matter halos
• Dark matter halos of luminous AGNs from galaxy-galaxy lensing with the HSC Subaru Strategic Program