New X-Ray Transient in M31: CXOM31 J004059.2+411551

Bibcode
2007ATel.1147....1G
Galache, J. L.; Garcia, M. R.; Steeghs, D.; Torres, M. A. P.; Murray, S. S.; Primini, F. A.; Williams, B. F.
Bibliographical reference

The Astronomer's Telegram, #1147

Advertised on:
7
2007
Number of authors
7
IAC number of authors
0
Citations
3
Refereed citations
2
Description
We report the discovery of a previously unseen X-ray point source detected in a 5ks observation starting on 2007-07-05.54 UT as part of our ongoing Chandra/HST M31 transient program. The source was detected on the edge of ACIS-S at coordinates RA(J2000) 00:40:59.2, Dec(J2000) +41:15:51.2, with centroid position errors of 2.4" and 3.0", respectively (subject to the standard bore-sight correction). The 0.7-3.0 keV spectrum is well modelled using an absorbed disk blackbody (after ascertaining that an added powerlaw made a negligible contribution to the flux).
Type
Non-refereed
Black holes

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