Evolution of Broad-Line Emission from Active Galactic Nuclei

Authors

Moshe Elitzur, University of KentuckyFollow
Luis C. Ho, Peking University, China
Jonathan R. Trump, University of California - Santa Cruz

Abstract

Apart from viewing-dependent obscuration, intrinsic broad-line emission from active galactic nuclei (AGN) follows an evolutionary sequence: type 1 → 1.2/1.5 → 1.8/1.9 → 2 as the accretion rate on to the central black hole is decreasing. This spectral evolution is controlled, at least in part, by the parameter L_bol/M^2/3, where L_bol is the AGN bolometric luminosity and M is the black hole mass. Both this dependence and the double-peaked profiles that emerge along the sequence arise naturally in the disc-wind scenario for the AGN broad-line region.

Document Type

Article

Publication Date

3-11-2014

Notes/Citation Information

Published in Monthly Notices of the Royal Astronomical Society, v. 438, issue 4, p. 3340-3351.

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

The copyright holder has granted the permission for posting the article here.

Digital Object Identifier (DOI)

http://dx.doi.org/10.1093/mnras/stt2445

Repository Citation

Elitzur, Moshe; Ho, Luis C.; and Trump, Jonathan R., "Evolution of Broad-Line Emission from Active Galactic Nuclei" (2014). Physics and Astronomy Faculty Publications. 16.
https://uknowledge.uky.edu/physastron_facpub/16