In the 40-80 keV band, IGR J17191-2821 is marginally detected at the 4-sigma level with a flux of 5.8 +/- 1.4 mCrab. We cannot constrain the flux in the 3 to 20 keV energy band, because the source is well within the JEM-X field of view in only one science window, where it is not detected.
According to Simbad, there are two known sources within the IBIS/ISGRI position uncertainty: a soft X-ray ROSAT survey source 1RXS J171909.4-282041 at a distance of 1.4 arcmin and an infrared source IRAS 17159-2819 located 1.6 arcmin away. We further note the presence at a distance of 0.83 deg of the unidentified EGRET source 3EG J1717-2737 located at (RA,DEC)=(259.30,-27.63) with an uncertainty of 0.64 deg (95% confidence).
INTEGRAL will continue to observe this region in the coming days and we encourage follow-up observations of this source at all wavelengths.
|Publication date||5 Mar 2007|
|Publication status||Published - 5 Mar 2007|
|Series||The Astronomer's telegram|
- Gamma Ray
- Request for Observations