Measurement of interplanetary magnetic field in short period using the cosmic-ray Sun shadow measured by LHAASO
文献类型：会议论文
| 作者 | Nan, Yuncheng12,33; Chen, Songzhan33; Feng, Cunfeng12; Cao, Zhen31,32,33; Aharonian, F.29,30; An, Q.27,28; Axikegu26; Bai, L. X.25; Bai, Y. X.31,33; Bao, Y. W.24 |
| 出版日期 | 2022-03-18 |
| 会议日期 | 2021-07-12 |
| 会议地点 | Virtual, Berlin, Germany |
| 卷号 | 395 |
| DOI | 10.22323/1.395.1294 |
| 英文摘要 | The interplanetary magnetic field (IMF) between the Sun and the Earth induces the displacement of the cosmic-ray Sun shadow from the optical position. Previously, the average IMF has been measured by the ARGO-YBJ and the Tibet-ASy experiments through several years of data. With the improvement of the sensitivity, the first pool of WCDA in LHAASO, which has been operated since April 2019, and has observed the Sun shadow with significance exceeds 70 standard deviation. Using the data collected by WCDA from July 26 to August 22, 2019, we measured the displacements of Sun shadow at the energy of 6.4TeV every two or three days. Combining with the simulation of Sun shadow, the IMF is measured and is comparable with the satellite observations. This is the first time to measure the IMF using Sun shadow in a short period, and the expectation for space weather forecast is discussed. © Copyright owned by the author(s) under the terms of the Creative Commons. |
| 产权排序 | 第29完成单位 |
| 资助机构 | National Natural Science Foundation of China[11575203, 11775131] |
| 会议录 | Proceedings of Science
 |
| 会议录出版者 | Sissa Medialab Srl |
| 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 ; 核科学技术 |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| 资助项目 | National Natural Science Foundation of China[11575203] ; National Natural Science Foundation of China[11775131] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/25738]  |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China 2.Key Laboratory of Radio Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023, China; 3.Moscow Institute of Physics and Technology, Moscow, 141700, Russia; 4.Department of Physics, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; 5.Yunnan Observatories, Chinese Academy of Sciences, Yunnan, Kunming, 650216, China; 6.Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China; 7.School of Physical Science and Technology, Guangxi University, Guangxi, Nanning, 530004, China; 8.School of Physics, Peking University, Beijing, 100871, China; 9.Institute for Nuclear Research of Russian Academy of Sciences, Moscow, 117312, Russia; 10.School of Physics and Microelectronics, Zhengzhou University, Henan, Zhengzhou, 450001, China; |
| 推荐引用方式 GB/T 7714 | Nan, Yuncheng,Chen, Songzhan,Feng, Cunfeng,et al. Measurement of interplanetary magnetic field in short period using the cosmic-ray Sun shadow measured by LHAASO[C]. 见:. Virtual, Berlin, Germany. 2021-07-12. |
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来源：云南天文台
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