Optical ID of CXOM31 J004253.1+411422, a bright Black Hole X-ray Nova in M31

Bibcode
2010ATel.2474....1G
Garcia, M.; Murray, S.; Primini, F.; Callanan, P.; Nooraee, N.
Bibliographical reference

The Astronomer's Telegram, #2474

Advertised on:
3
2010
Number of authors
5
IAC number of authors
0
Citations
3
Refereed citations
3
Description
We report the likely optical ID of the bright transient recently discovered in M31, CXOM31 J004253.1+411422 (Henze et al, ATEL #2356). With a peak X-ray luminosity of nearly 5e39 erg/sec, this is the brightest X-ray transient yet found in M31. An approximately 4000 second HST exposure on 21 Jan 2010, using the ACS and F435W filter, finds an apparently new object with m(f435w)=23.8. This object is not seen in an earlier serendipitous 4000 second ACS exposure on 13 October 2004 using the F660N filter.
Type
Non-refereed
Black holes

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