No evidence for a low-mass black hole in Swift J1753.5-0127

A. W. Shaw, P. A. Charles, J. Casares, J. V. Hernández Santisteban

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22 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)1314-1322
JournalMonthly Notices of the Royal Astronomical Society
Volume463
Issue number2
Early online date19 Aug 2016
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Black hole physics
  • X-rays: binaries
  • X-rays: individual: Swift J1753.5-0127

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