No evidence for a low-mass black hole in Swift J1753.5-0127
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.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- December 2016
- DOI:
- 10.1093/mnras/stw2092
- arXiv:
- arXiv:1608.04969
- Bibcode:
- 2016MNRAS.463.1314S
- Keywords:
-
- black hole physics;
- X-rays: binaries;
- X-rays: individual: Swift J1753.5-0127;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 9 pages, 7 figures, accepted for publication in MNRAS