Recent activity of the black hole X-ray binary IGR J17091-3624 as observed with the SWIFT/XRT : spectral hardening following the sharp drop in X-ray intensity
Abstract
The last X-ray activity of the transient, Galactic, black hole X-ray binary IGR J17091-3624 was reported by Altamirano et al. (Atel #3913), where, using SWIFT/XRT data, they showed the source count rate of 15 +/- 2 cts/s on 31st January, 2012. Using INTEGRAL and IBIS detector, Drave et al. (Atel# 3916) detected the source activity in the 18-40 keV and 40-100 keV energy range respectively.
Here, we are briefly summarizing the source activity using all observations from February 2012 onwards by the SWIFT/XRT.- Publication:
-
The Astronomer's Telegram
- Pub Date:
- July 2012
- Bibcode:
- 2012ATel.4282....1P
- Keywords:
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- X-ray;
- Binary;
- Black Hole;
- Transient