The mass of the black hole in GRS 1915+105: new constraints from infrared spectroscopy

Show simple item record Hurley, Daniel Jason Callanan, Paul J. Elebert, Patrick Reynolds, M. T. 2017-11-07T09:38:54Z 2017-11-07T09:38:54Z 2013
dc.identifier.citation Hurley, D. J., Callanan, P. J., Elebert, P. and Reynolds, M. T. (2013) 'The mass of the black hole in GRS 1915+105: new constraints from infrared spectroscopy', Monthly Notices of the Royal Astronomical Society, 430(3), pp. 1832-1838. doi: 10.1093/mnras/stt001 en
dc.identifier.volume 430
dc.identifier.issued 3
dc.identifier.startpage 1832
dc.identifier.endpage 1838
dc.identifier.issn 0035-8711
dc.identifier.doi 10.1093/mnras/stt001
dc.description.abstract GRS 1915+105 has the largest mass function of any Galactic black hole system, although the error is relatively large. Here we present spectroscopic analysis of medium-resolution infrared Very Large Telescope archival data of GRS 1915+105 in the K band. We find an updated ephemeris, and report on attempts to improve the mass function by a refinement of the radial velocity estimate. We show that the spectra are significantly affected by the presence of phase-dependent CO bandhead emission, possibly originating from the accretion disc: we discuss the impact this has on efforts to better constrain the black hole mass. We report on a possible way to measure the radial velocity utilizing apparent H-band atomic absorption features and also discuss the general uncertainty of the system parameters of this well-studied object. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Oxford University Press en
dc.rights © 2013, the Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society en
dc.subject Stars en
dc.subject Individual en
dc.subject GRS 1915+105 en
dc.subject Infrared en
dc.subject X-rays en
dc.subject Binaries en
dc.title The mass of the black hole in GRS 1915+105: new constraints from infrared spectroscopy en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Daniel Hurley, Physics, University College Cork, Cork, Ireland. +353-21-490-3000 en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Monthly Notices of the Royal Astronomical Society en
dc.internal.IRISemailaddress en

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