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题名: Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot
作者: He, Hao-Ning1, 2; Kusenko, Alexander1, 3; Nagataki, Shigehiro4; Zhang, Bin-Bin5, 6; Yang, Rui-Zhi2, 7; Fan YiZhong(范一中)2
刊名: PHYSICAL REVIEW D
出版日期: 2016-02-18
卷号: 93, 期号:4
DOI: 10.1103/PhysRevD.93.043011
文章类型: Article
英文摘要: The Telescope Array (TA) collaboration has reported a hotspot of 19 ultrahigh-energy cosmic rays (UHECRs). Using a universal model with one source and energy-dependent magnetic deflections, we show that the distribution of the TA hotspot events is consistent with a single source hypothesis, although multiple sources cannot be ruled out. The chance probability of this distribution arising from a homogeneous distribution is 0.2%. We describe a Monte Carlo Bayesian (MCB) inference approach, which can be used to derive parameters of the magnetic fields as well as the source coordinates, and we apply this method to the TA hotspot data, inferring the location of the likely source. We discuss possible applications of the same approach to future data.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]: Astronomy & Astrophysics ; Physics
关键词[WOS]: ENERGY COSMIC-RAYS ; LARGE-AREA TELESCOPE ; GALACTIC MAGNETIC-FIELD ; STAR-FORMING GALAXIES ; SOURCE CATALOG ; GAMMA-RAYS ; BURSTS ; ORIGIN ; PROPAGATION ; NUCLEI
收录类别: SCI
项目资助者: National Natural Science Foundation of China(11303098 ; China Postdoctoral science foundation(2012M521137 ; International Postdoctoral Exchange Fellowship Program ; U.S. Department of Energy(DE-SC0009937) ; World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan ; JSPS (Japan Society for the Promotion of Science)(25610056 ; MEXT (Ministry of Education, Culture, Sports, Science and Technology)(26105521) ; 973 Program of China(2013CB837000) ; NASA TBD ; 11433009 ; 2013T60569) ; 26287056) ; 11525313)
语种: 英语
WOS记录号: WOS:000370618700002
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16147
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Univ Tokyo, Kavli IPMU WPI, Kashiwa, Chiba 2778568, Japan
4.RIKEN, Astrophys Big Bang Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
5.Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA
6.CSIC, IAA, POB 03004, E-18080 Granada, Spain
7.Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany
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