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The Structure of the Broad Emission Line Region as Shown by Variability Monitoring

Published online by Cambridge University Press:  19 July 2016

Julian H. Krolik*
Affiliation:
Johns Hopkins University

Abstract

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The various methods used to infer the physical conditions and location of the material responsible for broad line emission in AGN are reviewed. Recent efforts have focussed on reverberation mapping, whose basic concepts and experimental constraints are discussed. A new method for analyzing the results of monitoring experiments, regularized linear inversion, is presented. This method is then applied to published data from the 1989 IUE campaign on NGC 5548, and the results found contrasted with those obtained by the previous standard method, maximum entropy.

Type
Variability
Copyright
Copyright © Kluwer 1994 

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