Mergers and binary systems of SMBH in the contexts of nuclear activity and galaxy evolution

Details Mergers and binary systems of SMBH in the contexts of nuclear activity and galaxy evolution Mergers and binary systems of SMBH in the contexts of nuclear activity and galaxy evolution

2004-12-16

arxiv.org/abs/astro-ph/0412416v1

Astronomy and Astrophysics

Astrophysics

2 pages, no figures; to be published in Proceedings of the Conference "Growing Black Holes", Garching, Germany June 21-25, 200

Scientific paper

The dynamic evolution of binary systems of supermassive black holes (SMBH) may be a key factor affecting a large fraction of the observed properties of active galactic nuclei (AGN) and galaxy evolution. Different classes of AGN can be related in general to four evolutionary stages in a binary SMBH: 1) early merger stage; 2) wide pair stage; 3) close pair stage; and 4) pre-coalescence stage. This scheme can explain a variety of properties of AGN: radio and optical luminosity differences between different classes of AGN, long-term and short-term variability, quasi-periodic nuclear flares, recurrent formation of relativistic outflows in AGN and their apparent morphology and kinematics.

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