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题名:
Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array
作者: Amenomori, M.1; Bi, X. J.2; Chen, D.3; Chen, T. L.4; Chen, W. Y.2; Cui, S. W.5; Danzengluobu4; 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 Jing(黄静)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.13,25; Labaciren4; Le, G. M.15; Li, A. F.2,6,16; Li, H. J.4; Li, W. J.2,7; Liu Chao(刘超)2; Liu, J. S.2; Liu, M. Y.4; Lu, H.2; Meng, X. R.4; Miyazaki, T.13; Mizutani, K.11,17; 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.2; Saito, T.20; Saito, T. Y.21; Sakata, M.10; Sako, T. K.14; Shao, J.2,6; Shibata, M.12; Shiomi, A.2,22; Shirai, T.8; Sugimoto, H.23; Takita, M.14; Tan, Y. H.2; Tateyama, N.8; Torii, S.11; Tsuchiya, H.24; 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; Yuda, T.14; Zhai, L. M.3; Zhang, H. M.2; Zhang, J. L.2; Zhang, X. Y.6; Zhang, Y.2; Zhang, Yi2; Zhang, Ying2; Zhaxisangzhu4; Zhou, X. X.7; Tibet AS Colloboration
关键词: astroparticle physics ; cosmic rays
刊名: ASTROPHYSICAL JOURNAL
发表日期: 2017-02-20
DOI: 10.3847/1538-4357/836/2/153
卷: 836, 期:2
文章类型: Article
收录类别: SCI
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: SIDEREAL ANISOTROPY ; ARRIVAL DIRECTIONS ; TEV ; PROPAGATION ; INTENSITY ; SPECTRUM ; ICECUBE ; SOLAR
英文摘要: We report on the analysis of the 10-1000 TeV large-scale sidereal anisotropy of Galactic cosmic rays (GCRs) with the data collected by the Tibet Air Shower Array from 1995 October to 2010 February. In this analysis, we improve the energy estimate and extend the decl. range down to -30 degrees. We find that the anisotropy maps above 100 TeV are distinct from that at a multi-TeV band. The so-called tail-in and loss-cone features identified at low energies get less significant, and a new component appears at similar to 100TeV. The spatial distribution of the GCR intensity with an excess (7.2 sigma pre-trial, 5.2 sigma post-trial) and a deficit (-5.8 sigma pre-trial) are observed in the 300 TeV anisotropy map, in close agreement with IceCube's results at 400 TeV. Combining the Tibet results in the northern sky with IceCube's results in the southern sky, we establish a full-sky picture of the anisotropy in hundreds of TeV band. We further find that the amplitude of the first order anisotropy increases sharply above similar to 100 TeV, indicating a new component of the anisotropy. All these results may shed new light on understanding the origin and propagation of GCRs.
语种: 英语
项目资助者: Ministry of Education, Culture, Sports, Science and Technology ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Natural Sciences Foundation of China(11405182 ; 1135010 ; 11405180)
WOS记录号: WOS:000395866500001
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内容类型: 期刊论文
URI标识: http://ir.bao.ac.cn/handle/114a11/8886
Appears in Collections:射电天文研究部_期刊论文

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作者单位: 1.Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.Tibet Univ, Dept Math & Phys, Lhasa 850000, Peoples R China
5.Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Peoples R China
6.Shandong Univ, Dept Phys, Jinan 250100, Peoples R China
7.Southwest Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China
8.Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan
9.Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan
10.Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan
11.Waseda Univ, Res Inst Sci & Engn, Tokyo 1698555, Japan
12.Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan
13.Shinshu Univ, Dept Phys, Matsumoto, Nagano 3908621, Japan
14.Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
15.China Meteorol Adm, Natl Ctr Space Weather, Beijing 100081, Peoples R China
16.Shandong Agr Univ, Sch Informat Sci & Engn, Tai An 271018, Shandong, Peoples R China
17.Saitama Univ, Saitama 3388570, Japan
18.Natl Inst Informat, Tokyo 1018430, Japan
19.Sakushin Gakuin Univ, Utsunomiya, Tochigi 3213295, Japan
20.Tokyo Metropolitan Coll Ind Technol, Tokyo 1168523, Japan
21.Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
22.Nihon Univ, Coll Ind Technol, Narashino, Chiba 2758576, Japan
23.Shonan Inst Technol, Fujisawa, Kanagawa 2518511, Japan
24.Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan
25.ISAS JAXA, Sagamihara, Kanagawa 2525210, Japan

Recommended Citation:
Amenomori, M.,Bi, X. J.,Chen, D.,et al. Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array[J]. ASTROPHYSICAL JOURNAL,2017,836(2).
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