GS 1826- 238年的钟脉冲引起的硬X射线短缺
The hard X-ray shortages prompted by the clock bursts in GS 1826--238
摘要：
我们报告了利用所有可获得的{ \it RXTE}观测资料对GS 1826- 238的研究，集中于I型爆发期间硬X射线的行为。我们发现在30- 50 keV处的硬X射线短缺是由来自I型爆发的软X射线簇所促进的。这种短缺发生的时间延迟后，峰值的软通量的3.6 $\pm$ 1.2秒。硬X射线的行为，在爆发表明冷却和重新加热的日冕，在此期间需要大量的能量。我们推测这种能量来源于I型爆发对吸积过程的反馈，导致吸积速率的快速暂时增加。
英文摘要：
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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