A Caltech Library Service

A Possible Correlation between the Luminosities and Lifetimes of Active Galactic Nuclei

Adelberger, Kurt L. and Steidel, Charles C. (2005) A Possible Correlation between the Luminosities and Lifetimes of Active Galactic Nuclei. Astrophysical Journal, 630 (1). pp. 50-58. ISSN 0004-637X. doi:10.1086/431789.

[img] PDF - Published Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


We use the clustering of galaxies around distant AGNs to show with ~90% confidence that fainter AGNs are longer lived. Our argument is simple: since the measured galaxy-AGN cross-correlation length r_0 ~ 5 h^(-1) Mpc does not vary significantly over a 10 mag range in AGN optical luminosity, faint and bright AGNs must reside in dark matter halos with similar masses. The halos that host bright and faint AGNs must therefore have similar abundances, and bright AGNs are rare partly because their lifetimes are short.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Steidel, Charles C.0000-0002-4834-7260
Additional Information:© 2005. The American Astronomical Society. Received 2005 March 10; accepted 2005 May 11. K. L. A. would like to thank L. Ho, L. Hernquist, L. Ferrarese, and J. Kollmeier for many interesting conversations and an anonymous referee for encouraging us to discuss the physical interpretation of the duty cycle. Our collaborators in the Lyman break survey did most of the work in taking and reducing these data. We are grateful that they let us proceed with the analysis. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Based, in part, on data obtained at the W. M. Keck Observatory, which is operated as a scientific partnership between the California Institute of Technology, the University of California, and NASA, and was made possible by the generous financial support of the W. M. Keck Foundation.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:galaxies: high-redshift; large-scale structure of universe; quasars: general
Issue or Number:1
Record Number:CaltechAUTHORS:20170408-141820229
Persistent URL:
Official Citation:Kurt L. Adelberger and Charles C. Steidel 2005 ApJ 630 50
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75920
Deposited By: 1Science Import
Deposited On:19 Apr 2017 22:39
Last Modified:15 Nov 2021 16:56

Repository Staff Only: item control page