NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-19 T09:38:44 PDT
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For refcode 2007MNRAS.382..895S:
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NED Abstract

Copyright by Royal Astronomical Society. 2007MNRAS.382..895S X-ray active galactic nuclei in the core of the Perseus cluster S. Santra, J. S. Sanders and A. C. Fabian Abstract. We present a study of the X-ray emission from the nuclei of galaxies observed in the core of the Perseus cluster in a deep exposure with Chandra. Point sources are found coincident with the nuclei of 13 early-type galaxies, as well as the central galaxy NGC 1275. This corresponds to all galaxies brighter than M_B_ > -18 in the Chandra field. All of these sources have a steep power-law spectral component and four have an additional thermal component. The unabsorbed power-law luminosities in the 0.5-7.0 keV band range from 8 x 10^38^ to 5 x 10^40^ erg s^-1^. We find no simple correlations between the K-band luminosity, or the FUV and NUV AB magnitudes of these galaxies and their X-ray properties. We have estimated the black hole masses of the nuclei using the K-band M_BH_ -L_Kbol_ relation and again find no correlation between black hole mass and the X-ray luminosity. Bondi accretion on to the black holes in the galaxies with minihaloes should make them much more luminous than observed. Key words: galaxies: clusters: individual: Perseus, X-rays: galaxies
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