Observation of Medium-Scale Anisotropy in Very-High-Energy Cosmic Rays using LHAASO-KM2A
文献类型：会议论文
| 作者 | Cao, Zhen23,24,25; Aharonian, F.25,26,27,28; Bai, Y. X.23,25; Bao, Y. W.29; Bastieri, D.30; Bi, X. J.23,24,25; Bi, Y. J.23,25; Bian, W.29; Bukevich, A. V.31; Cai, C. M.32 |
| 出版日期 | 2025-12-30 |
| 会议日期 | 2025-07-15 |
| 会议地点 | Geneva, Switzerland |
| 卷号 | 501 |
| DOI | 10.22323/1.501.0287 |
| 英文摘要 | The intensity of Galactic cosmic rays in the arrival directions is highly isotropic; however, many cosmic ray experiments have observed weak anisotropies of various angular sizes. In this work, we report the observation of the medium-scale structures with the square kilometer array of the Large High Altitude Air Shower Observatory(LHAASO-KM2A). We have found that the positions of the excess regions, located at α ∼ 315◦, δ ∼ 21◦ (around 17 TeV), and α ∼ 125, δ ∼ 42◦, provide compelling evidence of energy dependence within the energy range of 10 TeV to over 100 TeV. Furthermore, the evolution behaviors of energy dependence may indicate that local complex turbulent environments play a potential role in the propagation of cosmic rays, which offers a new perspective on their origin and transport of cosmic rays. © Copyright owned by the author(s) |
| 产权排序 | 第27完成单位 |
| 资助机构 | National Natural Science Foundation of China[12273114] |
| 会议录 | Proceedings of Science
 |
| 文献子类 | Conference article (CA) - |
| 学科主题 | 物理学 ; 高能物理学 ; 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| 资助项目 | National Natural Science Foundation of China[12273114] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28944]  |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 2.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 3.Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Hong Kong; 4.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 5.Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 6.School of Physics and Astronomy, Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Guangdong, Zhuhai, 519000, China; 7.School of Physics, Guangdong, Guangzhou, 510275, China; 8.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China; 9.APC, Université Paris Cité, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, 119, Paris, 75205, France; 10.Department of Engineering Physics, Department of Physics, Department of Astronomy, Tsinghua University, Beijing, 100084, China; |
| 推荐引用方式 GB/T 7714 | Cao, Zhen,Aharonian, F.,Bai, Y. X.,et al. Observation of Medium-Scale Anisotropy in Very-High-Energy Cosmic Rays using LHAASO-KM2A[C]. 见:. Geneva, Switzerland. 2025-07-15. |
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来源：云南天文台
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