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Title:
Swift/XRT Observations of IGR J17091-3624 and IGR J17098-3628
Authors:
Kennea, J. A.; Capitanio, F.
Publication:
The Astronomer's Telegram, #1140
Publication Date:
07/2007
Origin:
ATEL
Keywords:
X-ray, Transients
Bibliographic Code:
2007ATel.1140....1K

Abstract

At 14:47UT, July 9th 2007, Swift/XRT took a 2.5ks exposure of the field containing IGR J17098-3628. The observation, which was taken in Window Timing mode, reveal detections of two sources in the XRT field of view, IGR J17098-3628 (e.g. Grebenev et al., ATEL #444), and IGR J17091-3624 (Kuulkers et al., ATEL #149). Both sources were in relatively bright states as of the time of the observation.

The spectrum of IGR J17091-3624 is well fit (reduced chi2 = 1.4 by an absorbed (N_H = 0.78 +/- 0.05 x1022) power-law model with photon index = 1.60 +/- 0.05, similar to that seen when the source was previously in a hard state (Capitanio et al., 2006).
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