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arXiv · 1312.4166

The hard X-ray shortages prompted by the clock bursts in GS 1826--238

Ji Long·Zhang Shu·Chen YuPeng·Zhang Shuang-Nan·Torres F. Diego·Kretschmar Peter·Li Jian
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Abstract

We report on a study of GS 1826--238 using all available {\it RXTE} observations, concentrating on the behavior of the hard X-rays during type-I bursts. We find a hard X-ray shortage at 30--50 keV promoted by the shower of soft X-rays coming from type-I bursts. This shortage happens with a time delay after the peak of the soft flux of 3.6 $\pm$ 1.2 seconds.The behavior of hard X-rays during bursts indicates cooling and reheating of the corona, during which a large amount of energy is required. We speculate that this energy originates from the feedback of the type-I bursts to the accretion process, resulting in a rapid temporary increase of the accretion rate.

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Ji Long, Zhang Shu, Chen YuPeng, Zhang Shuang-Nan, Torres F. Diego, Kretschmar Peter, Li Jian. 2013-12-15. The hard X-ray shortages prompted by the clock bursts in GS 1826--238. https://doi.org/10.1088/0004-637x/782/1/40

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