Work

Evolution of broad-line emission from active galactic nuclei

Year: 2014

Type: article

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 Lbol/M2/3, where Lbol 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.

Source: Monthly Notices of the Royal Astronomical Society

DOI: 10.1093/mnras/stt2445

Authors: Moshe Elitzur, Luis C. Ho, Jonathan R. Trump

Institutions: University of Kentucky, Carnegie Institution for Science, Peking University, Carnegie Observatories, Pennsylvania State University, University of California, Santa Cruz, University of California Observatories

Language: English

Topic: Galaxies: Formation, Evolution, Phenomena

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2168928771

FWCI: 7.876

Cites: 93

Cited by: 175

Related to: 10