A Search for the Optical Counterpart to the X-ray Transient Discovered Serendipitously in the Field of Bol 111
ATel #1335; A. W. Shafter (SDSU)
on 18 Dec 2007; 01:45 UT
Credential Certification: Allen W. Shafter (aws@nova.sdsu.edu)
Subjects: Optical, X-ray, Transient
Kong and Di Stefano (ATel #1333) report the discovery on
2007 Dec 13 UT of a supersoft X-ray transient (R.A.=00:42:09.9,
Decl.=+40:57:48, J2000) discovered serendipitously during
Swift observations of the supersoft source in the M31
globular cluster Bol 111 (Atel #1294). An R-band image
taken with the Mount Laguna Observatory 1-m reflector
approximately three days later on 2007 Dec 16.07 UT
reveals no optical counterpart of this new transient
to a limiting magnitude of R=20.