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ATEL # 886; S. Shaw (Southampton, UK/ ISDC, Switzerland), S. Soldi, N. Mowlavi (ISDC, Switzerland), E. Kuulkers (ESA/ESAC, Spain), S. Brandt, J. Chenevez (DNSC, Denmark), T. Courvoisier (ISDC, Switzerland), A. Domingo Garau (LAEFF/INTA, Spain), K. Ebisawa (ISAS, Japan), P. Kretschmar (ESA/ESAC, Spain), C. Markwardt (GSFC, USA), T. Oosterbroek (ESA/ESTEC, The Netherlands), A. Paizis (INAF-IASF, Italy), D. Risquez Oneca (LAEFF/INTA, Spain), C. Sanchez-Fernandez (ESA/ESAC, Spain), R. Wijnands (UvA, The Netherlands)
on 18 Sep 2006; 21:08 UT
Password Certification: Erik Kuulkers (email@example.com)
Subjects: X-ray, Gamma Ray, Black Holes, Neutron Stars, Transients, Variables
The new INTEGRAL source IGR J17497-2821 (ATel #885) has been clearly detected by IBIS/ISGRI (S/N=33, 20-60 keV) in the INTEGRAL Galactic bulge monitoring program (ATels #438, #874) on 2006, Sep 18, 08:30-12:12 (UT). The source fluxes at 20-60 keV and 60-150 keV are about 45 mCrab and 50 mCrab, respectively, indeed indicating a hard X-ray source. Preliminary spectral analysis shows the source to exhibit a power-law spectrum with a photon index of about 2.0.
Our best source position (RA, Dec = 267.410 deg, -28.358 deg, J2000; 90% confidence error of 1') is consistent with that reported in ATel #885. We note that the source is also just seen with a S/N of about 7 in the Jem-X 3-10 keV and 10-25 keV bands; further analysis is in progress.