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

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dc.contributor.authorHurley, Daniel Jason
dc.contributor.authorCallanan, Paul J.
dc.contributor.authorElebert, Patrick
dc.contributor.authorReynolds, M. T.
dc.date.accessioned2017-11-07T09:38:54Z
dc.date.available2017-11-07T09:38:54Z
dc.date.issued2013
dc.description.abstractGRS 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.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHurley, 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/stt001en
dc.identifier.doi10.1093/mnras/stt001
dc.identifier.endpage1838
dc.identifier.issn0035-8711
dc.identifier.issued3
dc.identifier.journaltitleMonthly Notices of the Royal Astronomical Societyen
dc.identifier.startpage1832
dc.identifier.urihttps://hdl.handle.net/10468/4959
dc.identifier.volume430
dc.language.isoenen
dc.publisherOxford University Pressen
dc.relation.urihttps://academic.oup.com/mnras/article/430/3/1832/978953/The-mass-of-the-black-hole-in-GRS-1915105-new
dc.rights© 2013, the Authors. Published by Oxford University Press on behalf of the Royal Astronomical Societyen
dc.subjectStarsen
dc.subjectIndividualen
dc.subjectGRS 1915+105en
dc.subjectInfrareden
dc.subjectX-raysen
dc.subjectBinariesen
dc.titleThe mass of the black hole in GRS 1915+105: new constraints from infrared spectroscopyen
dc.typeArticle (peer-reviewed)en
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