Name of the Speaker(s):Rafal MODERSKI
Institution: Nicolaus Copernicus Astronomical Center
Polish Academy of Sciences
Title of the communication: Evolution of Supermassive Black Hole in AGNs
Preliminary abstract (12 lines max.):
We present our numerical study
of the evolution of the supermassive black hole (BH) in the
center of active galactic nuclei (AGN).
Two processes are taken into account:
acretion of matter from geometrically thin
accretion disk and electromagnetic extraction of energy of
the black hole by Blanford-Znajek process. Evolutions of
BH's spin and mass, disk luminosity and power
extracted are presented. Obtained results may explain
observed dichotomy in jet activity of AGNs.
