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Bright Quasars as Rapid Precessors

Published online by Cambridge University Press:  07 August 2017

Nico Roos
Nico Roos*
Affiliation:
Astronomical Institute, Catholic University of Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands

Abstract

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The formation and evolution of massive binary black holes in galactic nuclei is discussed in a galaxy merger model for the activation of galactic nuclei. Mass flow into a galactic nucleus induced by the merger causes the simultaneous tightening of a preexisting binary and an increase in the fueling level of the central hole(s). The model predicts that during the final, short and most luminous phase of an AGN the precession period of the central hole will rapidly become as short as 103 yr. Some observational implications are mentioned.

Type
Part 4: Black Holes, Accretion Disks and Gravitational Lenses
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 241 - 243
Copyright
Copyright © Kluwer 1989 

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