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Hydrodynamics Near the Central Engine

Published online by Cambridge University Press:  12 April 2016

John F. Hawley
John F. Hawley*
Affiliation:
Theoretical Astrophysics 130-33, Caltech Pasadena, CA 91125

Abstract

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The “central engine” of quasars and active galactic nuclei Is most likely powered by accretion into a supermassive black hole. A menagerie of steady state accretion flows have been developed, and these are briefly reviewed. Several examples from recent numerical calculations of axisymmetric accretion flows provide disk formation scenarios from which one can calculate plasma densities, and other values of interest for a range of accretion rates and black hole masses. These results can be compared with the well studied, but physically unrealistic case of radial accretion. Although a reasonable conceptual picture of the central engine has been developed, considerable work remains to be done.

Type
7. Active Galactic Nuclei
Information
International Astronomical Union Colloquium , Volume 89: Radiation Hydrodynamics in Stars and Compacts Objects , 1986 , pp. 369 - 383
Copyright
Copyright © Springer-Verlag 1986

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