No evidence for a low-mass black hole in Swift J1753.5-0127
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We present high-resolution, time-resolved optical spectroscopy of the black hole X-ray transient Swift J1753.5-0127. Our optical spectra do not show features that we can associate with the companion star. However we do observe broad, double-peaked emission lines, typical of an accretion disc. We show that the mass of the compact object is likely >7.4 ± 1.2 M⊙, much higher than previous suggestions of a low-mass (<5 M⊙) black hole.
Shaw , A W , Charles , P A , Casares , J & Hernández Santisteban , J V 2016 , ' No evidence for a low-mass black hole in Swift J1753.5-0127 ' , Monthly Notices of the Royal Astronomical Society , vol. 463 , no. 2 , pp. 1314-1322 . https://doi.org/10.1093/mnras/stw2092
Monthly Notices of the Royal Astronomical Society
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