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Emission-line kinematics as a probe of the central engine in QSOs

Published online by Cambridge University Press:  19 July 2016

Amri Wandel
Amri Wandel*
Affiliation:
Astromomy Program, University of Maryland, College Park, MD 20742, USA

Abstract

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We investigate the constraints on dynamic models for the line-emitting regions in quasars and AGN. The parameters characterising the central energy source (Mass, efficiency, accretion rate) are calculated in terms of the physical conditions in the line emitting gas. In a large sample the central mass (calculated assuming the emission-line clouds are bound) is proportional to the continuum luminosity. We find typical values of L/LE∼10−2±0.5, e∼0.1-l%, and Ṁ/ṀE∼1–10.

Type
III. Spectral Line Studies
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 331 - 336
Copyright
Copyright © Reidel 1986 

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