Supermassive binary black hole system in the quasar 3C 345

Details Supermassive binary black hole system in the quasar 3C 345 Supermassive binary black hole system in the quasar 3C 345

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002evn..conf..121l&link_type=abstract

6th European VLBI Network Symposium on New Developments in VLBI Science and Technology, held in Bonn, June 25th-28th 2002, proce

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Scientific paper

Most of active galactic nuclei (AGN) present a remarkable variety of signs pointing toward periodical processes determining the observed properties of this class of extragalactic objects. It is expected that these processes must be taking place in the very center of an active galaxy, thereby being related to the core of the AGN. We propose here the hypothesis that most of the AGN contain supermassive binary black hole systems, in which the orbital motion and precession are ultimately responsible for the observed broad--band emission variations, as well as for the morphological and kinematic properties of the radio emission on parsec scales. We apply this scenario to the archetypical quasar 3C 345, and show that our model explains the observed variations of radio and optical emission from the quasar, and reproduces the structural variations observed in the parsec--jet of this object.

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