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; Feng,Z. Y.7; Gou,Q. B.2; Guo,Y. Q.2; He,H. H.2; He,Z. T.5; Hibino,K.8; Hotta,N.9; Hu,Haibing4; Hu,H. B.2; Huang,J.2; Jia,H. Y.7; Jiang,L.2; Kajino,F.10; Kasahara,K.11; Katayose,Y.12; Kato,C.13; Kawata,K.14; Kozai,M.13,15; Labaciren,4; Le,G. M.16; Li,A. F.2,6,17; Li,H. J.4; Li,W. J.2,7; Liu,C.2; Liu,J. S.2; Liu,M. Y.4; Lu,H.2; Meng,X. R.4; Miyazaki,T.13; Munakata,K.13; Nakajima,T.13; Nakamura,Y.13; Nanjo,H.1; Nishizawa,M.18; Niwa,T.13; Ohnishi,M.14; Ohta,I.19; Ozawa,S.11; Qian,X. L.2,6; Qu,X. B.20; Saito,T.21; Saito,T. Y.22; Sakata,M.10; Sako,T. K.14,23; Shao,J.2,6; Shibata,M.12; Shiomi,A.24; Shirai,T.8; Sugimoto,H.25; Takita,M.14; Tan,Y. H.2; Tateyama,N.8; Torii,S.11; Tsuchiya,H.26; Udo,S.8; Wang,H.2; Wu,H. R.2; Xue,L.6; Yamamoto,Y.10; Yamauchi,K.12; Yang,Z.2; Yuan,A. F.4; Zhai,L. M.3; Zhang,H. M.2; Zhang,J. L.2; Zhang,X. Y.6; Zhang,Y.2; Zhang,Yi2; Zhang,Ying2; Zhaxisangzhu,4; Zhou,X. X.7
Source PublicationThe Astrophysical Journal
AbstractAbstract 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.
Keywordcosmic rays magnetic fields Sun: activity Sun: coronal mass ejections (CMEs)
WOS IDIOP:0004-637X-860-1-aac2e6
PublisherThe American Astronomical Society
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Document Type期刊论文
Affiliation1.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
11.Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan
12.Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
13.Department of Physics, Shinshu University, Matsumoto 390-8621, Japan
14.Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa 277-8582, Japan
15.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara 252-5210, Japan
16.National Center for Space Weather, China Meteorological Administration, Beijing 100081, People’s Republic of China
17.School of Information Science and Engineering, Shandong Agriculture University, Taian 271018, People’s Republic of China
18.National Institute of Informatics, Tokyo 101-8430, Japan
19.Sakushin Gakuin University, Utsunomiya 321-3295, Japan
20.College of Science, China University of Petroleum, Qingdao 266555, People’s Republic of China
21.Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan
22.Max-Planck-Institut für Physik, Munich D-80805, Germany
23.Escuela de Ciencias Físicas y Nanotechnología, Yachay Tech, Imbabura 100115, Ecuador
24.College of Industrial Technology, Nihon University, Narashino 275-8576, Japan
25.Shonan Institute of Technology, Fujisawa 251-8511, Japan
26.Japan Atomic Energy Agency, Tokai-mura 319-1195, Japan
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Amenomori,M.,Bi,X. J.,Chen,D.,等. 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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