Swift/BAT detects an outburst from IGR J17544-2619

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Title:		Swift/BAT detects an outburst from IGR J17544-2619
Authors:		Krimm, H. A.; Barthelmy, S. D.; Barbier, L.; Cummings, J.; Fenimore, E.; Gehrels, N.; Markwardt, C.; Palmer, D.; Parsons, A.; Sakamoto, T.; Sato, G.; Stamatikos, M.; Tueller, J.
Publication:		The Astronomer's Telegram, #1265
Publication Date:		11/2007
Origin:		ATEL
Keywords:		X-ray, Request for Observations, Binaries, Transients
Bibliographic Code:		2007ATel.1265....1K

Abstract

The Swift/BAT hard X-ray transient monitor reports an outburst of the supergiant fast X-ray transient IGR J17544-2619. The source was first detected at 0.043 +/- 0.008 cts/cm^2/sec (190 mcrab) in a 408-sec observation in the 15-50 keV energy range, beginning at 1:31:04 UT on Nov. 8, 2007 (MJD 54412). It continued to be observed above 100 mcrab over the next several hours and was seen at ~165 mcrab at 6:07:11 UT.

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