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	Influence of earth-directed coronal mass ejections on the sun’s shadow observed by the tibet-iii air shower array
	Amenomori,M.1; Bi,X. J.2; Chen,D.3; Chen,T. L.4; Chen,W. Y.2; Cui,S. W.5; Danzengluobu,4; Ding,L. K.2; Feng,C. F.6; Feng,Zhaoyang2
刊名	The astrophysical journal
	2018-06-07
卷号	860期号:1
关键词	Cosmic rays Magnetic fields Sun: activity Sun: coronal mass ejections (cmes)
ISSN号	0004-637X
DOI	10.3847/1538-4357/aac2e6
英文摘要	Abstract we examine the possible influence of earth-directed coronal mass ejections (ecmes) on the sun’s shadow in the 3?tev cosmic-ray intensity observed by the tibet-iii air shower (as) array. we confirm a clear solar-cycle variation of the intensity deficit in the sun’s shadow during ten years between 2000 and 2009. this solar-cycle variation is overall reproduced by our monte carlo (mc) simulations of the sun’s shadow based on the potential field model of the solar magnetic field averaged over each solar rotation period. we find, however, that the magnitude of the observed intensity deficit in the sun’s shadow is significantly less than that predicted by mc simulations, particularly during the period around solar maximum when a significant number of ecmes is recorded. the χ2 tests of the agreement between the observations and the mc simulations show that the difference is larger during the periods when the ecmes occur, and the difference is reduced if the periods of ecmes are excluded from the analysis. this suggests the first experimental evidence of the ecmes affecting the sun’s shadow observed in the 3?tev cosmic-ray intensity.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-860-1-AAC2E6
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175735
专题	高能物理研究所
作者单位	1.Department of Physics, Hirosaki University, Hirosaki 036-8561, Japan 2.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 4.Department of Mathematics and Physics, Tibet University, Lhasa 850000, People’s Republic of China 5.Department of Physics, Hebei Normal University, Shijiazhuang 050016, People’s Republic of China 6.Department of Physics, Shandong University, Jinan 250100, People’s Republic of China 7.Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, People’s Republic of China 8.Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan 9.Faculty of Education, Utsunomiya University, Utsunomiya 321-8505, Japan 10.Department of Physics, Konan University, Kobe 658-8501, Japan
推荐引用方式 GB/T 7714	Amenomori,M.,Bi,X. J.,Chen,D.,et al. Influence of earth-directed coronal mass ejections on the sun’s shadow observed by the tibet-iii air shower array[J]. The astrophysical journal,2018,860(1).
APA	Amenomori,M..,Bi,X. J..,Chen,D..,Chen,T. L..,Chen,W. Y..,...&Zhou,X. X..(2018).Influence of earth-directed coronal mass ejections on the sun’s shadow observed by the tibet-iii air shower array.The astrophysical journal,860(1).
MLA	Amenomori,M.,et al."Influence of earth-directed coronal mass ejections on the sun’s shadow observed by the tibet-iii air shower array".The astrophysical journal 860.1(2018).

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