Relativistic effects on the observed AGN luminosity distribution

Abstract

Recently Zhang (2005) has proposed a model to account for the well established effect that the fraction of type-II AGNs is anti-correlated with the observed X-ray luminosity; the model consists of an X-ray emitting accretion disk coaligned to the dusty torus within the standard AGN unification model. In this paper the model is refined by including relativistic effects of the observed X-ray radiations from the vicinity of the supermassive black hole in an AGN. The relativistic corrections improve the combined fitting results of the observed luminosity distribution and the type-II AGN fraction, though the improvement is not significant. The type-II AGN fraction prefers non- or mildly spinning black hole cases and rules out the extremely spinning case.

9 pages, 4 figures, accepted for publication in PASJ

References in corpus (2)

• B-Mode contamination by synchrotron emission from 3-years WMAP data
• Evidence for Rapidly Spinning Black Holes in Quasars

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