Swift J053041.9-665426: a new LMC X-ray transient
Abstract
Swift detected a new X-ray transient in the Large Magellanic Cloud. The observation (00045769001) was performed with 407 s exposure on 2011 Nov. 6 from 03:57 to 04:03 UT. The source was serendipitously detected at large off-axis angle with a count rate of 0.45 cts s-1. The position is R.A. = 05:30:41.9 and Dec. = -66:54:26 (J2000) with an uncertainty of 4.0 arcsec. The spectrum can be described by an absorbed power-law with photon index of 1.7 ± 0.5 and LMC column density of 2.1 (0.1-5.1) × 1021 cm-2.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- November 2011
- Bibcode:
- 2011ATel.3747....1S
- Keywords:
-
- X-ray;
- Binary;
- Black Hole;
- Neutron Star;
- Transient