Possible quiescent Chandra counterpart to IGRJ17494-3030
ATel #3986; P. G. Jonker (SRON/CfA/RU), T. J. Maccarone (Southampton)
on 20 Mar 2012; 20:52 UT
Credential Certification: P.G. Jonker (pjonker@cfa.harvard.edu)
Subjects: X-ray, Black Hole, Neutron Star, Transient
For the GBS collaboration we report on a previous Chandra observation of
the field of the currently active source IGR J17494-3030 (ATels #3984, #3985).
The Chandra observation is part of the Galactic Bulge Survey (Jonker et al.
2011), was obtained on May 13, 2008 and is about 2 ksec. long. A faint X-ray
source is present at an angular distance of 2 arcminutes of the reported
INTEGRAL position which has an estimated uncertainty of 1.3 arcminutes (the
confidence level of this estimate has not been given, see ATel #3984). The Chandra
source is CXOGBS J174918.8-302821 (entry 264 in the source list of Jonker et al.
2011). The accuracy of the Chandra source position is dominated by the boresight
uncertainty of Chandra which is typically 0.6 arcseconds (at 90%
confidence).
A future Swift observation will probably show if the position of this Chandra
source is consistent with that of IGRJ17494-3030. If so, the accurate Chandra
position will help identify an optical or near-infrared counterpart in this
crowded region of the bulge.
