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X-ray bursts as a probe of the corona: the case of XRB 4U 1636-536
Ji L(纪龙); Zhang S(张澍); Chen YP(陈玉鹏); Ji, L; Zhang, S; Chen, YP; Zhang, SN; Torres, DF; Kretschmar, P; Chernyakova, M; Li, J; Wang, JM;; Zhang SN(张双南); Wang JM(王建民)
2013
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号432期号:4页码:2773-2778
摘要To investigate the possible cooling of the corona by soft X-rays bursts, we have studied 114 bursts embedded in the known X-ray evolution of 4U 1636-536. We have grouped these bursts according to the ratio of the flux in the 1.5-12 keV band with respect to that in the 15-50 keV band, as monitored by Rossi X-ray Timing Explorer/All Sky Monitor and Swift/Burst Alert Telescope, respectively. We have detected a shortage at hard X-rays while bursting. This provides hints for a corona cooling process driven by soft X-rays fed by the bursts that occurred on the surface of neutron star. The flux shortage at 30-50 keV has a time lag of 2.4 +/- 1.5 s with respect to that at 2-10 keV, which is comparable to that of 0.7 +/- 0.5 s reported in bursts of IGR 17473-2721. We comment on the possible origin of these phenomena and on the implications for the models on the location of the corona.
关键词stars: coronae stars: neutron X-rays: binaries X-rays: individual: 4U 1636-536
学科领域Astronomy & Astrophysics
DOI10.1093/mnras/stt625
收录类别SCI
WOS记录号WOS:000321053500013
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224211
专题粒子天体物理中心
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Ji L,Zhang S,Chen YP,et al. X-ray bursts as a probe of the corona: the case of XRB 4U 1636-536[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,432(4):2773-2778.
APA 纪龙.,张澍.,陈玉鹏.,Ji, L.,Zhang, S.,...&王建民.(2013).X-ray bursts as a probe of the corona: the case of XRB 4U 1636-536.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,432(4),2773-2778.
MLA 纪龙,et al."X-ray bursts as a probe of the corona: the case of XRB 4U 1636-536".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 432.4(2013):2773-2778.
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