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X-ray activity of IGR J17379-3747 confirmed with INTEGRAL

ATEL # 1711; Simon Shaw (Southampton, U.K), Erik Kuulkers (ESA/ESAC, Spain), C. B. Markwardt (CRESST/U.Md./NASA/GSFC, USA), Rudolf Galis (ISDC, Switzerland), on behalf of the INTEGRAL Galactic Bulge monitoring group
on 10 Sep 2008; 13:52 UT
Password Certification: Simon Shaw (s.e.shaw@phys.soton.ac.uk)

Subjects: X-ray, Transients
Referred to by ATEL #: 1714

The outburst of X-rays from IGR J17379-3747 ( = XTE J1737-376) reported by Swift/BAT (ATel #1709) was also detected by INTEGRAL/ISGRI during a Galactic Bulge Monitoring (ATel #438) exposure starting at 2008-09-05T00:02 and lasting 12 ksec. The source was seen at 19 2 mCrab in the 18-40 keV band, almost a factor of 2 higher than the 15-50 keV flux reported by BAT three days earlier. No emission was seen in the 40-100 keV band (limiting sensitivity ~10 mCrab).

The position returned by ISGRI is RA, Dec= 264.531 -37.752 (J2000) with an error radius of 3.4 arcmin, consistent with all the measurements of the position given in ATel #1709; combining these positions with a weighted mean gives a position of RA, Dec= 264.509 -37.7513 (J2000) 1.8 arcmin.

Observations of the source location will be made with INTEGRAL approximately every three days, the results of which can be seen via the web link below. IGR J17379-3747 will also be observed regularly with INTEGRAL during the upcoming Galactic Centre Key Programme.


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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates