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The Unification of Active Galaxies: Observations

Published online by Cambridge University Press:  12 April 2016

R.W. Goodrich
R.W. Goodrich*
Affiliation:
The W.M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USA

Abstract

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Unification theories have been central to much of our recent progress in the study of active galactic nuclei (AGN). These theories often explain the differences between some observationally defined classes of objects as due to what might be considered ‘uninteresting’ or nonfundamental parameters, such as viewing angle. In this presentation, I discuss not only such orientation-dependent unification theories, but also expand the concept to unification through other means, such as evolutionary effects.

Type
X. Unification of Active Galaxies and Other Global Issues
Information
International Astronomical Union Colloquium , Volume 159: Emission Lines in Active Galaxies: New Methods and Techniques , 1997 , pp. 445 - 452
Copyright
Copyright © Astronomical Society of the Pacific 1997

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