New gamma-ray transient, IGR J11305-6256 discovered by INTEGRAL
ATel #278; N. Produit (ISDC, Geneva), J. Ballet (CEN, Saclay), N. Mowlavi (ISDC, Geneva)
on 14 May 2004; 13:05 UT
Credential Certification: Jerome Rodriguez (email@example.com)
Subjects: Gamma Ray, Request for Observations, Binary, Black Hole, Neutron Star, Transient
A previously unknown gamma-ray transient, IGR J11305-6256, was discovered
by the IBIS/ISGRI telescope on May 12, 2004 during INTEGRAL
observation of the Carina region.
The source position is: R.A.=11h30m34s DEC= -62d55m51s
(equinox 2000.0, position uncertainty 5').
It was in the IBIS field-of-view during 58 hours.
It was detected in the overall mosaic of all the data
of a revolution at an average flux of 8 mCrab in the 20 to 60 keV band.
In the X band (3 to 10 keV), the source cannot be seen in
the overall mosaic of the JEM-X detector,
neither in any individual pointings where this source is in the JEM-X
We encourage observation of this source at other wavelengths.