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Black Hole Models of Quasars

Blandford, R. D. (1986) Black Hole Models of Quasars. In: Quasars. IAU Symposium Proceedings Series. No.119. D. Reidel , Dordrecht, pp. 359-369. ISBN 9789027722973.

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Observations of active galactic nuclei are interpreted in terms of a theoretical model involving accretion onto a massive black hole. Optical quasars and Seyfert galaxies are associated with holes accreting near the Eddington rate and radio galaxies with sub-critical accretion. It is argued that magnetic fields are largely responsible for extracting energy and angular momentum from black holes and disks. Recent studies of electron-positron pair plasmas and their possible role in establishing the emergent X-ray spectrum are reviewed. The main evolutionary properties of active galactic nuclei can be interpreted in terms of a simple model in which black holes accrete gas at a rate dictated by the rate of gas supply which decreases with cosmic time. It may be worth searching for eclipsing binary black holes in lower power Seyferts.

Item Type:Book Section
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Blandford, R. D.0000-0002-1854-5506
Additional Information:© 1986 by the IAU. I thank Drs. Kapahi and Swarup for their kind invitation to attend this symposium and Drs. Phinney, Rees and Schmidt for helpful discussions of AGN evolution. I also thank the US national committee of the IAU for the award of a travel grant and the National Science Foundation for support under grant AST84-15355.
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International Astronomical UnionUNSPECIFIED
NSFAST 84-15355
Series Name:IAU Symposium Proceedings Series
Issue or Number:119
Record Number:CaltechAUTHORS:20181121-081531183
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Official Citation:Blandford, R. (1986). Black Hole Models of Quasars. Symposium - International Astronomical Union, 119, 359-369. doi:10.1017/S0074180900153021
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91122
Deposited By: Tony Diaz
Deposited On:21 Nov 2018 17:17
Last Modified:16 Nov 2021 03:38

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