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Hydrodynamics near the central engine

  • John F. Hawley
7. Active Galactic Nuclei
Part of the Lecture Notes in Physics book series (LNP, volume 255)

Abstract

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.

Keywords

Black Hole Angular Momentum Accretion Rate Thick Disk Keplerian Orbit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • John F. Hawley
    • 1
  1. 1.Theoretical Astrophysics 130–33Caltech Pasadena

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