Obscured accreting black holes at high redshift
Astrophysics
2009-11-10 v1
Abstract
A significant fraction of the accreting black holes powering high redshift AGN are obscured by large columns of dust and gas. For this reason, luminous type 2 quasars can be efficiently discovered combining hard X-ray and near-infrared observations. We will briefly discuss the most recent results.
Cite
@article{arxiv.astro-ph/0410272,
title = {Obscured accreting black holes at high redshift},
author = {A. Comastri and F. Fiore and C. Vignali and M. Brusa and F. Civano},
journal= {arXiv preprint arXiv:astro-ph/0410272},
year = {2009}
}
Comments
6 pages, contributed paper to Proceedings of the Conference "Growing Black Holes" held in Garching, Germany, June 21-25, 2004, edited by A. Merloni, S. Nayakshin and R. Sunyaev, Springer-Verlag series of "ESO Astrophysics Symposia"