IGR J16283-4838 X-ray flux is rising
ATel #458; A. Paizis (ISDC Geneva, IASF Milano), J. M. Miller (Harvard-Smithsonian CfA), S. Soldi (ISDC Geneva), N. Mowlavi (ISDC Geneva)
on 13 Apr 2005; 14:10 UT
Credential Certification: Nami Mowlavi (Nami.Mowlavi@obs.unige.ch)
Subjects: X-ray, Transient
Referred to by ATel #: 465
Starting on April 10th, 2005, 01:25:59 UTC, INTEGRAL performed a TOO
observation of GRO J1655-40 (PI Miller). The
newly discovered IGR J16283-4838 (ATEL #456) has been in the
partially coded field of view of ISGRI during all this observation.
IGR J16283-4838 is detected in IBIS/ISGRI with a significance of 11.6 in
the 20-60 keV mosaic (96 ksec) with a flux of ~ 8.5 mCrab.
This corresponds to an increase by about a factor 2 relative to the
~3.6 mCrab flux measured at the time of its first detection on 7-9 April
2005 (ATEL #456).