Abstract

We report a statistical study of the cluster‐centric distribution and X‐ray luminosity functions of active galactic nuclei (AGNs) in galaxy clusters using X‐ray observations of 68 galaxy clusters from the Chandra archive. We found that the deprojected radial density profile of X‐ray selected AGNs have a shape similar to normal galaxies rather than radio loud AGNs. On average the normalization of the cluster X‐ray luminosity functions (XLFs) within r200 are ∼324 and 231 times higher than that of the field luminosity function in the 0.5–2 and 2–8 keV bands, respectively. This AGN XLF implies that the average AGN fraction in clusters is (73±21)% and (52±18)% that of the field AGN fraction in the 0.5–2 and 2–8 keV bands, respectively.

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