INTEGRAL Detection and Improved Position of EXO 1722-363
ATel #178; A. Lutovinov (IKI, Moscow), M. Revnivtsev (IKI, Moscow/MPA, Garching), S. Molkov (IKI, Moscow)
on 20 Aug 2003; 17:21 UT
Credential Certification: A.Lutovinov (aal@hea.iki.rssi.ru)
Subjects: X-ray, Gamma Ray, Neutron Star, Pulsar
Referred to by ATel #: 179
We report an improved position for the X-ray pulsar
X1722-363. Based on the INTEGRAL/IBIS data we derive a
position of the source R.A. = 17h25.4m Decl. = -36o18'
(equinox J2000.0; 2' uncertainty). This position is 9.1'
away from the EXOSAT position, which was measured with
accuracy of 9' (Warwick et al. 1988, MNRAS 232, 551).
The source was observed with INTEGRAL observatory
several times during deep observations of galactic plane
in March-April 2003 and in August 2003. An averaged flux
of the source during spring observations in the 15-40 keV
energy band was 10-15 mCrab. Current observations of this
field performed by INTEGRAL on Aug 17-19, 2003 show that
the source flux is rather stable at the level of ~20 mCrab
in the same energy band.
