M 31 in X-rays with Swift - a new transient and an old source gone
Abstract
We report on the discovery of a new X-ray transient in M 31 found in four 4 ks ToO observations of the central region of this galaxy with the Swift X-ray telescope (XRT) in June 2011. The source is located at R.A.(J2000) = 00:42:49.6, Dec.(J2000) = +41:17:16 (uncertainty 3.8 arcseconds). No X-ray source was known at this position before. The XRT spectrum of the transient, designated SWIFT J004249.6+411716, only contains about 80 counts in the four observations combined.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- June 2011
- Bibcode:
- 2011ATel.3443....1H
- Keywords:
-
- X-ray;
- Transient