Observations of cosmic-ray Sun’s shadow with LHAASO-WCDA
文献类型：会议论文
| 作者 | Cui, Ming-Yang16; Xia, Jie15,16; He, Jia-Yin15,16; Shi, Guang-Lu15,16; Feng, Li15,16; Yuan, Qiang15,16; Zhang, Yi15,16; Cao, Zhen12,13,14; Aharonian, F.10,11; An, Q.8,9 |
| 出版日期 | 2024-09-27 |
| 会议日期 | 2023-07-26 |
| 会议地点 | Nagoya, Japan |
| 卷号 | 444 |
| DOI | 10.22323/1.444.0270 |
| 英文摘要 | During the propagation of cosmic rays (CRs) in the solar system, they are blocked by the Sun and deflected by the magnetic field, resulting in a shadow on the celestial map. As CRs travel from the vicinity of the Sun to the Earth, they encounter deflection from the coronal magnetic field (CMF), the interplanetary magnetic field (IMF), and finally the geomagnetic field (GMF). The extent of deflection is determined by the magnetic field’s intensity, direction, and energy of the CRs. Variations in the magnetic field cause corresponding changes in the position and size of the Sun’s shadow. By observing the Sun’s shadow of CRs, we can investigate the magnetic fields between the Sun and the Earth, complementing other measurements on these magnetic fields. Furthermore, it serves as a means to validate magnetic field models. The Large High Altitude Air Shower Observatory (LHAASO) is a new generation cosmic-ray and gamma-ray experiment in Daocheng, western China. With a vast Water Cherenkov Detector Array (WCDA) spanning 78,000 m2, LHAASO can successfully observe the significant Sun’s shadow within just a few days. Our study uses the WCDA to measure the Sun’s shadow effect caused by CRs over multiple Carrington rotation periods. Subsequently, we compare these results with simulations based on different magnetic field models. © Copyright owned by the author(s) under the terms of the Creative Commons. |
| 产权排序 | 第28完成单位 |
| 资助机构 | National Key Research and Development Program of China[2018YFA0404200] ; National Natural Science Foundation of China[12273114, 12220101003] |
| 会议录 | Proceedings of Science
 |
| 文献子类 | Conference article (CA) |
| 学科主题 | 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 Key Research and Development Program of China[2018YFA0404200];National Natural Science Foundation of China[12273114];National Natural Science Foundation of China[12220101003] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27922]  |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.School of Physics, Guangdong, Guangzhou, 510275, China; 2.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China; 3.Key Laboratory of Dark Matter and Space Astronomy, Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 4.Hebei Normal University, Hebei, Shijiazhuang, 050024, China; 5.Center for Astrophysics, Guangzhou University, Guangdong, Guangzhou, 510006, China; 6.School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023, China; 7.School of Physical Science and Technology, School of Information Science and Technology, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China; 8.University of Science and Technology of China, Anhui, Hefei, 230026, China; 9.State Key Laboratory of Particle Detection and Electronics, China; 10.Max-Planck-Institut for Nuclear Physics, P.O. Box 103980, Heidelberg, 69029, Germany; |
| 推荐引用方式 GB/T 7714 | Cui, Ming-Yang,Xia, Jie,He, Jia-Yin,et al. Observations of cosmic-ray Sun’s shadow with LHAASO-WCDA[C]. 见:. Nagoya, Japan. 2023-07-26. |
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来源：云南天文台
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