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Title: Black hole feedback in the luminous quasar PDS 456
Authors: Nardini, E.
Reeves, J. N.
Gofford, J.
Harrison, F. A.
Risaliti, G.
Braito, V.
Costa, M. T.
Matzeu, G. A.
Walton, D. J.
Behar, E.
Boggs, S. E.
Christensen, F. E.
Craig, W. W.
Hailey, C. J.
Matt, G.
Miller, J. M.
O'Brien, Paul T.
Stern, D.
Turner, T. J.
Ward, M. J.
First Published: 20-Feb-2015
Publisher: American Association for the Advancement of Science
Citation: Science, 2015, 347 (6224), pp. 860-863 (4)
Abstract: The evolution of galaxies is connected to the growth of supermassive black holes in their centers. During the quasar phase, a huge luminosity is released as matter falls onto the black hole, and radiation-driven winds can transfer most of this energy back to the host galaxy. Over five different epochs, we detected the signatures of a nearly spherical stream of highly ionized gas in the broadband X-ray spectra of the luminous quasar PDS 456. This persistent wind is expelled at relativistic speeds from the inner accretion disk, and its wide aperture suggests an effective coupling with the ambient gas. The outflow’s kinetic power larger than 10^39 W is enough to provide the feedback required by models of black hole and host galaxy co-evolution.
DOI Link: 10.1126/science.1259202
ISSN: 0036-8075
eISSN: 1095-9203
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Archived with reference to SHERPA/RoMEO and publisher website. This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on Vol. 347 20 February 2015 DOI: 10.1126/science.1259202
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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