ARlogo Annu. Rev. Astron. Astrophys. 1982. 20: 431-468
Copyright © 1982 by . All rights reserved

Reprinted with kind permission from , 4139 El Camino Way, Palo Alto, California, USA

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EXTRANUCLEAR CLUES TO THE ORIGIN AND EVOLUTION OF ACTIVITY IN GALAXIES

Bruce Balick


Astronomy Department, University of Washington, Seattle, Washington 98195

Timothy M. Heckman


Astronomy Program, University of Maryland, College Park, Maryland 20742 and Steward Observatory, University of Arizona, Tucson, Arizona 85721


Table of Contents

INTRODUCTION
What is an Active Galaxy?
The Scope of the Review

THE INFLUENCE OF THE EXTRAGALACTIC ENVIRONMENT
Cluster Environment
Near-Neighbors and Interacting Systems

ACTIVITY AND THE STELLAR PROPERTIES OF GALAXIES
Morphological Types
Stellar Kinematics
Absolute Magnitude
Bars, Rings, and Disk Anomalies
Stellar Populations and Birthrates

GAS AND DUST IN ACTIVE GALAXIES
Dust
Neutral and Molecular Gas
Extranuclear Ionized Gas

COSMOLOGICAL EVOLUTION OF ACTIVE NUCLEI

PERSPECTIVES
Summary
The Importance of Fluids: Radial Motions
Causes of Activity
Concluding Remarks

REFERENCES

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