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题名: New primordial-magnetic-field limit from the latest LIGO S5 data
作者: Wang, S.
刊名: PHYSICAL REVIEW D
出版日期: 2010
卷号: 81, 期号:2, 页码:-
关键词: RELIC GRAVITATIONAL-WAVES ;  MICROWAVE BACKGROUND POLARIZATION ;  PROBE WMAP OBSERVATIONS ;  FARADAY-ROTATION ;  ACCELERATING UNIVERSE ;  INFLATION ;  COSMOLOGY ;  ORIGIN
学科分类: Physics
通讯作者: Wang, S , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
部门归属: [Wang, S] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China; [Wang, S] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Since the energy momentum tensor of a magnetic field always contains a spin-2 component in its anisotropic stress, stochastic primordial magnetic field (PMF) in the early universe must generate stochastic gravitational-wave (GW) background. This process will greatly affect the relic gravitational wave (RGW), which is one of the major scientific goals of the laser interferometer GW detections. Recently, the fifth science (S5) run of laser interferometer gravitational-wave observatory (LIGO) gave a latest upper limit Omega(GW) < 6.9 x 10(-6) on the RGW background. Utilizing this upper limit, we derive new PMF limits: for a scale of galactic cluster lambda = 1 Mpc, the amplitude of PMF, that produced by the electroweak phase transition, has to be weaker than B(lambda) <= 4 x 10(-7) G; for a scale of supercluster lambda = 100 Mpc, the amplitude of PMF has to be weaker than B(lambda) <= 9 x 10(-11) G. In this manner, GW observation has potential to make interesting contributions to the study of primordial magnetic field.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000275068900009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5181
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang, S.. New primordial-magnetic-field limit from the latest LIGO S5 data[J]. PHYSICAL REVIEW D,2010,81(2):-.
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