Institutional Repository System Of Yunnan Observatories, CAS
| Observation of large-scale anisotropy in the arrival directions of cosmic rays with LHAASO-KM2A | |
Gao, Wei1; Cao, Qing2; Chen, Songzhan3; Cui, Shuwang2; He, Huihai3; Li, Wenlong1; Wu, Sha3; Zhang, Hengying1; Zhu, Chengguang1; Cao, Zhen4,5,6; Aharonian, F.7,8; An, Q.9,10; Axikegu11; Bai, L. X.12; Bai, Y. X.4,6; Bai, L. X.12; Bai, Y. X.4,6; Bao, Y. W.13; Bastieri, D.14; Bi, X. J.4,5,6; Bi, Y. J.4,6; Cai, H.15; Cai, J. T.14; Cao, Zhe9,10; Chang, J.16; Chang, J. F.4,6,9; Chen, B. M.17; Chen, E. S.4,5,6; Chen, J.12; Chen, Liang4,5,6; Chen, Liang18; Chen, Long11; Chen, M. J.4,6; Chen, M. L.4,6,9; Chen, Q. H.11; Chen, S. H.4,5,6; Chen, S. Z.4,6; Chen, T. L.19; Chen, X. L.4,5,6; Chen, Y.13; Cheng, N.4,6; Cheng, Y. D.4,6; Cui, S. W.17; Cui, X. H.20; Cui, Y. D.21; D’Ettorre Piazzoli, B.22; Dai, B. Z.23; Dai, H. L.4,6,9; Dai, Z. G.10; Danzengluobu19; della Volpe, D.24; Dong, X. J.4,6; Duan, K. K.16; Fan, J. H.14; Fan, Y. Z.16; Fan, Z. X.4,6; Fang, J.23; Fang, K.4,6; Feng, C. F.25; Feng, L.16; Feng, S. H.4,6; Feng, Y. L.16; Gao, B.4,6; Gao, C. D.25; Gao, L. Q.4,5,6; Gao, Q.19; Gao, W.25; Ge, M. M.23; Geng, L. S.4,6; Gong, G. H.26; Gou, Q. B.4,6; Gu, M. H.4,6,9; Guo, F. L.18; Guo, J. G.4,5,6; Guo, X. L.11; Guo, Y. Q.4,6; Guo, Y. Y.4,5,6,16; Han, Y. A.27; He, H. H.4,5,6; He, H. N.16; He, J. C.4,5,6; He, S. L.14; He, X. B.21; He, Y.11; Heller, M.24; Hor, Y. K.21; Hou, C.4,6; Hu, H. B.4,5,6; Hu, S.12; Hu, S. C.4,5,6; Hu, X. J.26; Huang, D. H.11; Huang, Q. L.4,6; Huang, W. H.25; Huang, X. T.25; Huang, X. Y.16; Huang, Z. C.11; Ji, F.4,6; Ji, X. L.4,6,9; Jia, H. Y.11; Jiang, K.9,10; Jiang, Z. J.23; Jin, C.4,5,6; Ke, T.4,6; Kuleshov, D.28; Levochkin, K.28; Li, B. B.17; Li, Cheng9,10; Li, Cong4,6; Li, F.4,6,9; Li, H. B.4,6; Li, H. C.4,6; Li, H. Y.10,16; Li, J.4,6,9; Li, K.4,6; Li, W. L.25; Li, X. R.4,6; Li, Xin9,10; Li, Xin11; Li, Y.12; Li, Y. Z.4,5,6; Li, Zhe4,6; Li, Zhuo29; Liang, E. W.30; Liang, Y. F.30; Lin, S. J.21; Liu, B.10; Liu, C.4,6; Liu, D.25; Liu, H.11; Liu, H. D.27; Liu, J.4,6; Liu, J. L.31; Liu, J. S.21; Liu, J. Y.4,6; Liu, M. Y.19; Liu, R. Y.13; Liu, S. M.11; Liu, W.4,6; Liu, Y.14; Liu, Y. N.26; Liu, Z. X.12; Long, W. J.11; Lu, R.23; Lv, H. K.4,6; Ma, B. Q.29; Ma, L. L.4,6; Ma, X. H.4,6; Mao JR(毛基荣)32 ; Masood, A.11; Min, Z.4,6; Mitthumsiri, W.33; Montaruli, T.24; Nan, Y. C.25; Pang, B. Y.11; Pattarakijwanich, P.33; Pei, Z. Y.14; Qi, M. Y.4,6; Qi, Y. Q.17; Qiao, B. Q.4,6; Qin, J. J.10; Ruffolo, D.33; Rulev, V.28; Sáiz, A.33; Shao, L.17; Shchegolev, O.28,34; Sheng, X. D.4,6; Shi, J. Y.4,6; Song, H. C.29; Stenkin, Yu. V.28,34; Stepanov, V.28
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| 会议录名称 | Proceedings of Science |
| 2022-03-18 | |
| 卷号 | 395 |
| DOI | 10.22323/1.395.0351 |
| 产权排序 | 第32完成单位 |
| 收录类别 | EI |
| 会议名称 | 37th International Cosmic Ray Conference, ICRC 2021 |
| 会议日期 | 2021-07-12 |
| 会议地点 | Virtual, Berlin, Germany |
| 摘要 | A global large-scale anisotropy in the arrival directions of cosmic rays were observed both in the Northern and Southern Hemisphere. It is evident that the morphology of the large-scale anisotropy and magnitude is energy dependent. However, only a few experiments can up to PeV with long term data accumulation. The measurement of anisotropy at high energies can provide more clues to the origin and propagation of cosmic rays. The Large High Altitude Air Shower Observatory (LHAASO), covering an area of 1.36 square kilometer, detect cosmic rays from sub-TeV up to 100 PeV with good element discrimination ability. In this paper, data collected by half array of KM2A during 2020 is used to analyze the anisotropy. The anisoptropies from 23 TeV up to 985 TeV are reported. The "inverse" anisotropy is observed at 985 TeV with significance of 5σ. The evolution of the anisotropy with energy is consistent with the others. With the operation of LHAASO, more accurate observation for the cosmic-ray anisotropy at higher energy will be made. © Copyright owned by the author(s). |
| 资助项目 | National Natural Science Foundation of China[U1831129] ; National Natural Science Foundation of China[U1931108] |
| 项目资助者 | National Natural Science Foundation of China[U1831129, U1931108] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 核科学技术 |
| 文章类型 | Conference article (CA) |
| 出版者 | Sissa Medialab Srl |
| URL | 查看原文 |
| EI入藏号 | 20230113325123 |
| EI主题词 | Cosmic rays |
| EI分类号 | 657 Space Physics - 657.2 Extraterrestrial Physics and Stellar Phenomena - 931.2 Physical Properties of Gases, Liquids and Solids |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/25723 |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.Shandong University, Institute of Frontier and Interdisciplinary Science, 72 Binhai Road, Qingdao, 266237, China; 2.Hebei Normal University, College of Physics, 20 East. 2nd Ring South Road, Shijiazhuang, 050024, China; 3.Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, 100049, China; 4.Key Laboratory of Particle Astrophyics, Experimental Physics Division, Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; 5.University of Chinese Academy of Sciences, Beijing, 100049, China; 6.TIANFU Cosmic Ray Research Center, Sichuan, Chengdu, China; 7.Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, 2, Dublin, Ireland; 8.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, Heidelberg, 69029, Germany; 9.State Key Laboratory of Particle Detection and Electronics, China; 10.University of Science and Technology of China, Anhui, Hefei, 230026, China; 11.School of Physical Science and Technology, School of Information Science and Technology, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China; 12.College of Physics, Sichuan University, Sichuan, Chengdu, 610065, China; 13.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 14.Center for Astrophysics, Guangzhou University, Guangdong, Guangzhou, 510006, China; 15.School of Physics and Technology, Wuhan University, Hubei, Wuhan, 430072, China; 16.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 17.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 18.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China; 19.Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Tibet, Lhasa, 850000, China; 20.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 21.School of Physics and Astronomy, School of Physics (Guangzhou), Sun Yat-Sen University, Guangdong, Zhuhai, 519000, China; 22.Dipartimento di Fisica, Università di Napoli ‘Federico II 23.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 24.D’epartement de Physique Nucl’eaire et Corpusculaire, Facult’e de Sciences, Universit’e de Gen‘eve, 24 Quai Ernest Ansermet, Geneva, 1211, Switzerland; 25.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China; 26.Department of Engineering Physics, Tsinghua University, Beijing, 100084, China; 27.School of Physics and Microelectronics, Zhengzhou University, Henan, Zhengzhou, 450001, China; 28.Institute for Nuclear Research, Russian Academy of Sciences, Moscow, 117312, Russia; 29.School of Physics, Peking University, Beijing, 100871, China; 30.School of Physical Science and Technology, Guangxi University, Guangxi, Nanning, 530004, China; 31.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China; 32.Yunnan Observatories, Chinese Academy of Sciences, Yunnan, Kunming, 650216, China; 33.Department of Physics, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; 34.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; 35.Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 36.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China |
| 推荐引用方式 GB/T 7714 | Gao, Wei,Cao, Qing,Chen, Songzhan,et al. Observation of large-scale anisotropy in the arrival directions of cosmic rays with LHAASO-KM2A[C]:Sissa Medialab Srl,2022. |
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