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Long-term monitoring of LS I+61 degrees 303 with INTEGRAL
Zhang S(张澍); Li J(李佳); Chen YP(陈玉鹏); Wang JM(王建民); Zhang, S; Torres, DF; Li, J; Chen, YP; Rea, N; Wang, JM
2010
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号408期号:1页码:642-646
通讯作者[Zhang, S. ; Li, J. ; Chen, Y. P. ; Wang, J. M.] Inst High Energy Phys, Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Torres, D. F.] ICREA, Barcelona 08010, Spain ; [Torres, D. F. ; Rea, N.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain ; [Wang, J. M.] Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China
文章类型Article
摘要LS I + 61 degrees 303 is one of the few high-mass X-ray binaries that has been recently observed at TeV and GeV energies. Here we investigate the hard X-ray spectral and timing properties of this source using the IBIS/ISGRI instrument on-board the INTEGRAL satellite. We carry out a systematic analysis based on all available INTEGRAL data since 2002 December 28 up to 2008 April 30. The total exposure time analysed amounts to 2.1 Ms, hence more than double the previous reported sample. The source is best detected in the 18-60 keV band, with a significance level of 12.0 sigma. The hard X-ray data are best fitted with a simple power law with a photon index of similar to 1.7 +/- 0.2. We detect a periodical signal at 27 +/- 4 d, matching the orbital period of 26.496 d previously reported at other wavelengths. The hard X-ray orbital light curve is obtained and compared with those derived at other frequencies.
关键词X-rays: individual: LS I+61 degrees 303
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1111/j.1365-2966.2010.17152.x
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000283118100051
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被引频次:14[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/311005/238171
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Zhang S,Li J,Chen YP,et al. Long-term monitoring of LS I+61 degrees 303 with INTEGRAL[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,408(1):642-646.
APA 张澍.,李佳.,陈玉鹏.,王建民.,Zhang, S.,...&Wang, JM.(2010).Long-term monitoring of LS I+61 degrees 303 with INTEGRAL.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,408(1),642-646.
MLA 张澍,et al."Long-term monitoring of LS I+61 degrees 303 with INTEGRAL".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 408.1(2010):642-646.
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