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
Copyright © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stw2092