Hard X-ray activity of IGR J17473-2721

E. Kuulkers*, S. Shaw, V. Beckmann, S. Brandt, J. Chenevez, T. J.-L. Courvoisier, A. Domingo, K. Ebisawa, P. Jonker, P. Kretschmar, C. Markwardt, T. Oosterbroek, A. Paizis, D. Risquez, C. Sanchez-Fernandez, R. Wijnands

*Corresponding author for this work

Research output: Other contributionNet publication - Internet publicationResearch

Abstract

Persistent X-ray activity has been reported by Swift/XRT (ATel #1459) and RXTE/PCA (ATel #1460) from the transient IGR J17473-2721 (= XTE J1747-274; ATels #467, #498) after the detection of an X-ray burst by SuperAGILE (ATel #1445). We report the detection of persistent activity at 18-100 keV with INTERAL/IBIS/ISGRI. The average hard X-ray flux during the Galactic bulge monitoring observations (see ATel #1385) which started on UT 2008 April 1, 16:55 of the source was 41+2 mCrab and 42+3 mCrab, at 18-40 keV and 40-100 keV, respectively, indicating a hard spectral state.
Original languageEnglish
Publication date3 Apr 2008
Publication statusPublished - 3 Apr 2008
SeriesThe Astronomer's telegram
NumberATel #1461

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