Long-term monitoring of LS I+61 degrees 303 with INTEGRAL

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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
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2010
卷号	408 期号:1 页码:642-646
关键词	X-rays: individual: LS I+61 degrees 303
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
英文摘要	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.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000283118100051
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238171]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.