Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1201...80y&link_type=abstract
THE MONSTER'S FIERY BREATH: FEEDBACK IN GALAXIES, GROUPS, AND CLUSTERS. AIP Conference Proceedings, Volume 1201, pp. 80-83 (200
Astronomy and Astrophysics
Astronomy
Galactic Nuclei, X-Ray Sources (Astronomical), Brightness, Intergalactic Matter, Galactic Nuclei, Circumnuclear Matter, And Bulges, X-Ray, Magnitudes And Colors, Luminosities, Intergalactic Matter, Quasar Absorption And Emission-Line Systems, Lyman Forest
Scientific paper
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.
Mohr Joseph John
O'Hara Tim
Yang Yu-xuan
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