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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 SkySurvey galaxies. Spanning a redshift range of $0.007 < z < 0.037$, with amedian $z=0.024$, we present a precise AGN clustering study of the most localAGN in the Universe. The AGN sample is drawn from the SWIFT/BAT 70-month andINTEGRAL/IBIS eight year all-sky X-ray surveys and contains both type I andtype II AGN. We find a large-scale bias for the full AGN sample of$b=1.04^{+0.10}_{-0.11}$, which corresponds to a typical host dark matter halomass of $M_{\rm h}^{\rm typ}=12.84^{+0.22}_{-0.30}\,h^{-1} M_{\odot}$. Whensplit 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 biasparameters. However, there are differences in the small-scale clustering whichare reflected in the full HOD model results. We find that low and high X-rayluminosity AGN, as well as type I and type II AGN, occupy dark matter haloesdifferently, with 3.4$\sigma$ and 4.0$\sigma$ differences in their mean halomasses, respectively, when split by luminosity and type. The latter findingcontradicts a simple orientation-based AGN unification model. As a by-productof our cross-correlation approach, we also present the first HOD model of 2MASSgalaxies.

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