INTEGRAL has identified MAXI J1749-310 to GRS 1747-312
ATel #13155; S. A. Grebenev, I. A. Mereminsky (Space Research Institute, Russian Academy of Sciences), E. Bozzo, C. Ferrigno, V. Savchenko, L. Ducci (ISDC, Switzerland)
on 2 Oct 2019; 13:25 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Sergei Grebenev (sergei@hea.iki.rssi.ru)
Subjects: X-ray, Neutron Star, Transient
INTEGRAL observed the field around the newly announced X-ray transient MAXI J1749-310 almost simultaneously with MAXI (ATel #13154). The observations covered the period 2019-09-29 at 22:05 to 2019-09-30 at 14:36 (UTC).
Around the best determined MAXI position, no source was detected by IBIS/ISGRI in the hard (25-80 keV) X-rays. The only source detected by the softer (3-30 keV) X-ray monitor JEM-X within a circle of 1 deg in radius around this position (see the link to the sky image below) is the known LMXB GRS 1747-312. The source is detected with a preliminary estimated average flux of about 20 mCrab in the 3-12 keV energy band. This is roughly compatible with the flux reported by MAXI.
The INTEGRAL data thus suggest that MAXI J1749-310 = GRS 1747-312.
X-ray view to the Galactic center region with INTEGRAL/JEM-X