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Objective-Prism Emission-Line Searches for Active Galactic Nuclei

Published online by Cambridge University Press:  12 April 2016

Caryl Gronwall ,
Vicki L. Sarajedini  and
John J. Salzer
Caryl Gronwall
Affiliation:
Dept. of Physics & Astronomy, Johns Hopkins University, Baltimore MD 21218
Vicki L. Sarajedini
Affiliation:
Dept. of Astronomy, University of Florida, Gainesville, FL 32611
John J. Salzer
Affiliation:
Astronomy Dept., Wesleyan University, Middletown, CT 06459

Abstract

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Objective-prism surveys for UV-excess and emission-line objects, especially the First and Second Byurakan Surveys, have been central to the study of active galactic nuclei (AGNs). We review previous line-selected surveys for AGNs and discuss their contribution to our understanding of the AGN phenomena. In addition, we present results from the KPNO International Spectroscopic Survey, a modern digital objective-prism survey for emission line objects. This survey is discovering substantial numbers of new AGNs, in particular low-luminosity AGNs and LINERs.

Type
Part 1. Optical Surveys for AGN
Information
International Astronomical Union Colloquium , Volume 184: AGN Surveys , 2002 , pp. 43 - 52
Copyright
Copyright © Astronomical Society of the Pacific 2002

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