Line profile variability due to perturbations in AGN accretion disk emissivity

Details Line profile variability due to perturbations in AGN accretion disk emissivity Line profile variability due to perturbations in AGN accretion disk emissivity

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pobeo..84..491s&link_type=abstract

Publications of the Astronomical Observatory of Belgrade, vol. 84, pp. 491-494

Astronomy and Astrophysics

Astronomy

2

Scientific paper

In this paper we analyzed the observed variability of the broad double-peaked spectral lines of some Active Galactic Nuclei (AGN). We assumed that such lines originate from outer part of an accretion disk around massive black hole of AGN, and that line variability is caused by perturbations in the disk emissivity. The disk emissivity was studied using numerical simulations based on relativistic ray-tracing method, assuming a modification of power-law emissivity which allows us to introduce the perturbations in form of the bright spots. Our results show that this model of disk emissivity perturbations can satisfactorily reproduce the observed line variability.

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