Swift/XRT Observations of IGR J17091-3624 and IGR J17098-3628

Details Swift/XRT Observations of IGR J17091-3624 and IGR J17098-3628 Swift/XRT Observations of IGR J17091-3624 and IGR J17098-3628

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1140....1k&link_type=abstract

The Astronomer's Telegram, #1140

Astronomy and Astrophysics

Astronomy

9

X-Ray, Transients

Scientific paper

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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