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2007•UvA-DARE (University of Amsterdam)Requires access

Recent and past activity of the supergiant fast X-ray transient IGR J17544-2619 as seen by INTEGRAL

Erik Kuulkers, D. Rísquez Oneca, Søren K. Brandt, Sara Elizabeth Shaw, Volker Beckmann, J. Chenevez, T. Courvoisier, A. Domingo, Ken Ebisawa, P. G. Jonker, Peter Kretschmar, Craig B. Markwardt, T. Oosterbroek, Adamantia Paizis, C. Sánchez‐Fernández, Rudy A. D. Wijnands

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Abstract

Following the report of the recent activity seen by Swift/BAT (ATel #1265) we note that the supergiant fast X-ray transient IGR J17544-2619 was also active about one and a half month earlier. During our INTEGRAL Galactic Bulge monitoring observations (see ATels #438, #874 and #1005) on UT 2007 Sep 21 04:10-07:52 the source flared on timescales of half an hour, from around the IBIS/ISGRI detection limits of one pointing (about 10 mCrab) up to 36 +/- 5 mCrab (20-60 keV).

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What this paper is about

Following the report of the recent activity seen by Swift/BAT (ATel #1265) we note that the supergiant fast X-ray transient IGR J17544-2619 was also active about one and a half month earlier. During our INTEGRAL Galactic Bulge monitoring observations (see ATels #438, #874 and #1005) on UT 2007 Sep 21 04:10-07:52 the source flared on timescales of half an hour, from around the IBIS/ISGRI detection limits of one pointing (about 10 mCrab) up to 36 +/- 5 mCrab (20-60 keV).

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Available abstract

Following the report of the recent activity seen by Swift/BAT (ATel #1265) we note that the supergiant fast X-ray transient IGR J17544-2619 was also active about one and a half month earlier. During our INTEGRAL Galactic Bulge monitoring observations (see ATels #438, #874 and #1005) on UT 2007 Sep 21 04:10-07:52 the source flared on timescales of half an hour, from around the IBIS/ISGRI detection limits of one pointing (about 10 mCrab) up to 36 +/- 5 mCrab (20-60 keV).

Key concepts: Supergiant, Astrophysics, Physics, X-ray transient, Ibis, Transient (computer programming), Astronomy, Neutron star

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Recent and past activity of the supergiant fast X-ray transient IGR J17544-2619 as seen by INTEGRAL — Research Paper | ScholarLens