In "Coevolution of Black Holes and Galaxies", from the Carnegie Observatories Centennial Symposia. Published by Cambridge University Press, as part of the Carnegie Observatories Astrophysics Series. Edited by L. C. Ho, 2004, p. 325.
astro-ph/0304150

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Abstract. This article reviews and discusses (1) the discovery and early work on the evolution of quasars and AGNs, (2) the different techniques used to find quasars and their suitability for evolutionary studies, (3) the current status of our knowledge of AGN evolution for 0 < z < 6, (4) the new results and questions that deep radio and X-ray surveys are producing for the subject, (5) the relation of AGNs to the massive black holes being found in local galaxies and what they tell us about both galaxy and AGN evolution, and (6) current research problems and future directions in quasar and AGN evolution.

Table of Contents

• INTRODUCTION AND BACKGROUND
• OBSERVATIONAL TECHNIQUES, SELECTION EFFECTS, AND SURVEYS
• Techniques for Finding Quasars and AGNs
• EVOLUTION OF THE AGN POPULATION
• Results through 1995
• Recent Large Optical Surveys
• Spectral Evolution
• Evolution of Radio Sources
• ESTIMATING BLACK HOLE MASSES
• THEORETICAL CONSIDERATIONS: HOW THE MASSES GROW
• CURRENT RESEARCH PROGRAMS
• Optical/Infrared Surveys
• Evolution of X-ray Sources
• NEXT STEPS
• REFERENCES