Статья

THE SPIN OF THE SUPERMASSIVE BLACK HOLE IN NGC 3783

Laura BrennemanHarvard-Smithsonian CfA, 60 Garden Street MS-67, Cambridge, MA 02138, USAC. S. ReynoldsDepartment of Astronomy, University of Maryland, College Park, MD 20742, USAMichael A. NowakMIT Kavli Institute for Astrophysics, Cambridge, MA 02139, USAR. C. ReisInstitute of Astronomy, University of Cambridge, Madingley Rd., Cambridge CB3 0HA, UKM. L. TrippeDepartment of Astronomy, University of Maryland, College Park, MD 20742, USAA. C. FabianInstitute of Astronomy, University of Cambridge, Madingley Rd., Cambridge CB3 0HA, UKK. IwasawaICREA and Institut de Ciències del Cosmos (ICC), Universitat de Barcelona (IEEC-UB), Martí i Franquès, 1, 08028 Barcelona, SpainJulia C. LeeDepartment of Astronomy, Harvard University, Harvard-Smithsonian CfA, 60 Garden Street MS-6, Cambridge, MA 02138, USAJ. M. MïllerDepartment of Astronomy, University of Michigan, Ann Arbor, MI 48109, USAR. F. MushotzkyDepartment of Astronomy, University of Maryland, College Park, MD 20742, USAK. NandraMax-Planck-Institut für Extraterrestrische Physik, Giessenbachstrasse 1, 85740 Garching, GermanyMarta VolonteriDepartment of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA

2011en

ABI

Аннотация

The Suzaku AGN Spin Survey is designed to determine the supermassive black hole spin in six nearby active galactic nuclei (AGN) via deep Suzaku stares, thereby giving us our first glimpse of the local black hole spin distribution. Here, we present an analysis of the first target to be studied under the auspices of this Key Project, the Seyfert galaxy NGC 3783. Despite complexity in the spectrum arising from a multi-component warm absorber, we detect and study relativistic reflection from the inner accretion disk. Assuming that the X-ray reflection is from the surface of a flat disk around a Kerr black hole, and that no X-ray reflection occurs within the general relativistic radius of marginal stability, we determine a lower limit on the black hole spin of a > 0.88 (99% confidence). We examine the robustness of this result to the assumption of the analysis, and present a brief discussion of spin-related selection biases that might affect flux-limited samples of AGN.

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Идентификаторы

DOI: 10.1088/0004-637x/736/2/103

Цитирования и источники

Цитирований: 2Использованных источников: 0

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