Poster abstract details

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 accretion disk around massive black hole of AGN, and that line variability is caused by perturbations in 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 Hbeta line variability in 3C 390.3 between 1995 and 1999.