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Title:
Weighing Black Holes in High-Redshift SCUBA Galaxies
Authors:
Alexander, D. M.
Publication:
From Z-Machines to ALMA: (Sub)Millimeter Spectroscopy of Galaxies ASP Conference Series, Vol. 375, proceedings of the conference held 12-14 January, 2006 at the North American ALMA Science Center, National Radio Astronomy Observatory, Charlottesville, Virginia, United States. Edited by Andrew J. Baker, Jason Glenn, Andrew I. Harris, Jeffrey G. Mangum and Min S. Yun., p.18
Publication Date:
10/2007
Origin:
ASP
Bibliographic Code:
2007ASPC..375...18A

Abstract

Deep SCUBA surveys have uncovered a population of dust-enshrouded star-forming galaxies at z≈ 2. Using the ultra-deep 2 Ms Chandra Deep Field-North survey, we recently showed that a large fraction of these systems are also undergoing intense black hole growth. Here we provide further constraints on the properties of the black holes in SCUBA galaxies using the virial black hole mass estimator. We show that typical SCUBA galaxies are likely to host black holes with MBH≈107 - 108 Mȯ that are accreting at, or close to, the Eddington limit. These results provide qualitative support for our earlier conclusion that the growth of the black hole lags that of the host galaxy in these massive ultraluminous galaxies.
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