Multistate observations of the Galactic black hole XTE J1752−223: evidence for an intermediate black hole spin
dc.contributor.author | Reis, R. C. | en_US |
dc.contributor.author | Miller, J. M. | en_US |
dc.contributor.author | Fabian, A. C. | en_US |
dc.contributor.author | Cackett, E. M. | en_US |
dc.contributor.author | Maitra, Dipankar | en_US |
dc.contributor.author | Reynolds, C. S. | en_US |
dc.contributor.author | Rupen, M. P. | en_US |
dc.contributor.author | Steeghs, D. T. H. | en_US |
dc.contributor.author | Wijnands, Rudy | en_US |
dc.date.accessioned | 2011-01-31T17:41:29Z | |
dc.date.available | 2012-04-03T21:46:58Z | en_US |
dc.date.issued | 2011-02-01 | en_US |
dc.identifier.citation | Reis, R. C.; Miller, J. M.; Fabian, A. C.; Cackett, E. M.; Maitra, D.; Reynolds, C. S.; Rupen, M.; Steeghs, D. T. H.; Wijnands, R.; (2011). "Multistate observations of the Galactic black hole XTE J1752−223: evidence for an intermediate black hole spin." Monthly Notices of the Royal Astronomical Society 410(4): 2497-2505. <http://hdl.handle.net/2027.42/79215> | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.issn | 1365-2966 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/79215 | |
dc.description.abstract | The Galactic black hole candidate XTE J1752−223 was observed during the decay of its 2009 outburst with the Suzaku and XMM–Newton observatories. The observed spectra are consistent with the source being in the ‘intermediate’ and ‘low-hard’ states, respectively. The presence of a strong, relativistic iron emission line is clearly detected in both observations and the line profiles are found to be remarkably consistent and robust to a variety of continuum models. This strongly points to the compact object in XTE J1752−223 being a stellar mass black hole accretor and not a neutron star. Physically motivated and self-consistent reflection models for the Fe Kα emission-line profile and disc reflection spectrum rule out either a non-rotating, Schwarzschild black hole or a maximally rotating, Kerr black hole at greater than 3σ level of confidence. Using a fully relativistic line function in which the black hole spin parameter is a variable, we have formally constrained the spin parameter to be 0.52 ± 0.11(1σ) . Furthermore, we show that the source in the low-hard state still requires an optically thick disc component having a luminosity which is consistent with the L ∝ T 4 relation expected for a thin disc extending down to the innermost stable circular orbit. Our result is in contrast to the prevailing paradigm that the disc is truncated in the low-hard state. | en_US |
dc.format.extent | 2847809 bytes | |
dc.format.extent | 3106 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.subject.other | Accretion, Accretion Discs | en_US |
dc.subject.other | Black Hole Physics | en_US |
dc.subject.other | Line: Profiles | en_US |
dc.subject.other | Relativistic Processes | en_US |
dc.subject.other | X-rays: Binaries | en_US |
dc.subject.other | X-rays: Individual: XTE J1752–223 | en_US |
dc.title | Multistate observations of the Galactic black hole XTE J1752−223: evidence for an intermediate black hole spin | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | Institute of Astronomy, Madingley Road, Cambridge CB3 0HA | en_US |
dc.contributor.affiliationother | Department of Astronomy, University of Maryland, College Park, MD 20742, USA | en_US |
dc.contributor.affiliationother | Joint Space Science Institute (JSI), University of Maryland, College Park, MD 20742, USA | en_US |
dc.contributor.affiliationother | NRAO, Array Operations Center, 1003 Lopezville Road, Socorro, NM 87801, USA | en_US |
dc.contributor.affiliationother | Department of Physics, University of Warwick, Coventry CV4 7AL | en_US |
dc.contributor.affiliationother | Astronomical Institute ‘Anton Pannekoek’, University of Amsterdam, Postbus 94249, 1090 GE Amsterdam, the Netherlands | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/79215/1/j.1365-2966.2010.17628.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2966.2010.17628.x | en_US |
dc.identifier.source | Monthly Notices of the Royal Astronomical Society | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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