New source IGR J17544-2619 discovered with INTEGRAL
ATel #190; R. A.Sunyaev (IKI, Moscow; MPA, Garching), S. A.Grebenev (IKI, Moscow), A. A.Lutovinov (IKI, Moscow), J. Rodriguez (CEA/SAp, Saclay), S. Mereghetti (IASF, Milano), D. Gotz (IASF, Milano), T. Courvoisier (ISDC, Versoix) and the shift team
on 17 Sep 2003; 15:15 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: S.A.Grebenev (firstname.lastname@example.org)
Subjects: Radio, Infra-Red, X-ray, Request for Observations, Binary, Black Hole, Neutron Star, Transient
We report the discovery of a new transient source, IGR J17544-2619,
with the IBIS/ISGRI detector on board the INTEGRAL observatory.
The source position is RA=17h54.4m, DEC= -26d19' (equinox 2000,
position uncertainty around 2'). The source was detected during an
observation of the Galactic Center field on September 17, 2003 at
01h10 UTC, with a flux of about 160 mCrab, 60 mCrab and less
than 15 mCrab (3-sigma upper limit) in the 18-25, 25-50 and
50-100 keV bands. The signal to noise ratio has reached ~36.
The source was brigth for about 2 hours and then faded below
the detection threshold.
We encourage follow up observations at other wavelengths.