Hemispheric distribution of coronal mass ejections from 1996 to 2020 | |
Zhang XJ(张小娟)4,5; Deng LH(邓林华)5; Qiang, Z. P.3; Fei, Y.2; Tian, X. A.1; Li, C.2 | |
刊名 | Monthly Notices of the Royal Astronomical Society |
2023-04-01 | |
卷号 | 520期号:3页码:3923-3936 |
关键词 | Sun: coronal mass ejections (CMEs) Sun: activity Sun: solar–terrestrial relations |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stad323 |
产权排序 | 第1完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | Solar magnetic structures are known to be asymmetrically distributed between the two hemispheres. To date, the hemispheric variations of the coronal mass ejections (CMEs) at different latitudes, in different cycles, and for different types (regular and specific events) are still unclear. From the list of white-light CMEs in the Coordinated Data Analysis Web catalogue, we investigate the hemispheric asymmetry of high-latitude and low-latitude CMEs in the time interval from 1996 January to 2020 December. The main results are shown for the following: (1) in each hemisphere, regular CMEs are significantly correlated with solar activity, particularly for low latitudes. However, specific CMEs are not correlated with solar activity; (2) the main reason for the hemispheric asymmetry of the CMEs is attributable to specific CMEs, not regular CMEs. The hemispheric asymmetry of high-latitude CMEs appears to have little connection to that of low-latitude CMEs; (3) for the total and specific CMEs, the relationship between the absolute asymmetry index at high and low latitudes has a positive correlation prior to the cycle maximum, but a negative correlation after the cycle maximum; and (4) the dominant hemisphere, the cumulative trend, and the amplitude of the total, specific, and regular CMEs in cycle 23 differ from those in cycle 24. Our analysis results could be useful for understanding the cyclical variation of the magnetic free energy during different solar cycles, and could also provide insight into more physical processes responsible for the solar–terrestrial relationship. © 2023 The Author(s) |
学科主题 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
URL标识 | 查看原文 |
资助项目 | National Natural Science Foundation of China[11873089] |
语种 | 英语 |
出版者 | Oxford University Press |
资助机构 | National Natural Science Foundation of China[11873089] |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26026] |
专题 | 云南天文台_抚仙湖太阳观测站 |
作者单位 | 1.Chongqing University of Arts and Sciences, Chongqing, 402160, China 2.School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming, 650221, China; 3.College of Big Data and Intelligent Engineering, Southwest Forestry University, Kunming, 650224, China; 4.University of Chinese Academy of Sciences, Beijing, 100049, China; 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; |
推荐引用方式 GB/T 7714 | Zhang XJ,Deng LH,Qiang, Z. P.,et al. Hemispheric distribution of coronal mass ejections from 1996 to 2020[J]. Monthly Notices of the Royal Astronomical Society,2023,520(3):3923-3936. |
APA | Zhang XJ,Deng LH,Qiang, Z. P.,Fei, Y.,Tian, X. A.,&Li, C..(2023).Hemispheric distribution of coronal mass ejections from 1996 to 2020.Monthly Notices of the Royal Astronomical Society,520(3),3923-3936. |
MLA | Zhang XJ,et al."Hemispheric distribution of coronal mass ejections from 1996 to 2020".Monthly Notices of the Royal Astronomical Society 520.3(2023):3923-3936. |
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