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. https://resolver.caltech.edu/CaltechAUTHORS:20181121-081531183
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Abstract
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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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. | ||||||
Group: | TAPIR | ||||||
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Series Name: | IAU Symposium Proceedings Series | ||||||
Issue or Number: | 119 | ||||||
DOI: | 10.1017/S0074180900153021 | ||||||
Record Number: | CaltechAUTHORS:20181121-081531183 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20181121-081531183 | ||||||
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 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 21 Nov 2018 17:17 | ||||||
Last Modified: | 16 Nov 2021 03:38 |
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