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The flux modulation of INTEGRAL
Chen YP(陈玉鹏); Zhang S(张澍); Wang JM(王建民); Li TB(李惕碚); Qu JL(屈进禄); Zhang, S; Wang, JM; Li, TP; Qu, JL; Chen, YP
2010
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY ; SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
卷号53期号:1页码:#REF!
文章类型Article
摘要

We have analyzed International Gamma-Ray Astrophysics Laboratory (INTEGRAL) data corresponding to observations of the high mass X-ray binary (HMXB) V0332 + 53 during its huge outburst which occurred in 2004-2005, and found that there is a quasi periodic signal with ultra low frequency of roughly 4-5 x 10(-5) Hz in the observation. This feature is revealed through a series of consistent analyses of imagings and fittings of the energy spectrum for each science window (SCW), and shows up in the corresponding light curves. The analysis of the power spectrum also provides a hint of a power peak located around 4 x 10(-5) Hz, after subtracting off the linear trend of the light curve, and shows the consistency with the previous analyses. A similar feature shows up in our analysis of the light curve of Crab in hexagonal dithering mode. Therefore, an instrumental effect on the flux modulation might exist in the INTEGRAL data product of different levels: imaging, spectral fitting and light curve analysis, at least for the observational mode of hexagonal dithering. Such an effect is, to our knowledge, not yet available in the current literature.

关键词X-ray Source Individual v0332+53
学科领域Physics
DOI10.1007/s11433-010-0004-6
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000280291800025
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226220
专题院士
推荐引用方式
GB/T 7714
Chen YP,Zhang S,Wang JM,et al. The flux modulation of INTEGRAL[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(1):#REF!.
APA Chen YP.,Zhang S.,Wang JM.,Li TB.,Qu JL.,...&Chen, YP.(2010).The flux modulation of INTEGRAL.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(1),#REF!.
MLA Chen YP,et al."The flux modulation of INTEGRAL".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.1(2010):#REF!.
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