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On the origin of black hole spin in high-mass black hole binaries : Cygnus X-1
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Axelsson, Magnus, Church, Ross P., Davies, Melvyn B., Levan, Andrew J. and Ryde, Felix (2011) On the origin of black hole spin in high-mass black hole binaries : Cygnus X-1. Monthly Notices of the Royal Astronomical Society, Volume 412 (Number 4). pp. 2260-2264. doi:10.1111/j.1365-2966.2010.18050.x ISSN 0035-8711.
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Official URL: http://dx.doi.org/10.1111/j.1365-2966.2010.18050.x
Abstract
To date, there have been several detections of high-mass black hole binaries in both the Milky Way and other galaxies. For some of these, the spin parameter of the black hole has been estimated. As many of these systems are quite tight, a suggested origin of the spin is angular momentum imparted by the synchronous rotation of the black hole progenitor with its binary companion. Using Cygnus X-1, the best studied high-mass black hole binary, we investigate this possibility. We find that such an origin of the spin is not likely, and our results point rather to the spin being the result of processes during the collapse.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Black holes (Astronomy), X-ray binaries -- Spectra | ||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||
Publisher: | Wiley | ||||
ISSN: | 0035-8711 | ||||
Official Date: | 2011 | ||||
Dates: |
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Volume: | Volume 412 | ||||
Number: | Number 4 | ||||
Page Range: | pp. 2260-2264 | ||||
DOI: | 10.1111/j.1365-2966.2010.18050.x | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Sweden. Vetenskapsrådet [Research Council], Rymdstyrelsen [Swedish National Space Board], Wenner-Gren Foundations | ||||
Grant number: | 2009-691 (SRC), 2008-4089 (SRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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