Breaking of Large-Scale Filament due to Magnetic Reconnection and Consequent Partial Eruption | |
Kang KF(康凯锋)2,3,4,5; Guo, Yang1; Li Y(李燕)2,3,5; Wang JX(王晶星)2,3,5; Lin J(林隽)2,3,4,5 | |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
2023-09-01 | |
卷号 | 23期号:9 |
关键词 | Sun: activity Sun: filaments prominences Sun: coronal mass ejections (CMEs) Sun: flares Sun: magnetic fields |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/ace519 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Following our previous work, we studied the partial eruption of a large-scale horse-shoe-like filament that had been observed in a decaying active region on the solar disk for more than 4.5 days. The filament became active after it was broken into two pieces, P1 and P2 seen in H & alpha;, by magnetic reconnection between the magnetic field around it and that of a newly emerging active region nearby. P1 eventually erupted 13 hr after the breaking and escaped from the Sun, developing to a fast coronal mass ejection, and P2 stayed. But the mass in P1 falling down to P2 in the eruption suggests that the global magnetic fields over P1 and P2 were still connected to each other prior to the eruption. The reconnection process breaking the filament occurred outside the filament, and P1 and P2 were located almost at the same altitude, so the fashion of the filament partial eruption studied here differs from that of the double-decker model and that of reconnection inside the filament. Analyzing the decay indices of the background fields above P1 and P2, n (1) and n (2), showed that the altitude where n (1) exceeds the critical value of n ( c ) = 1.5 for the loss of equilibrium or the torus instability is lower than that where n (2) > n ( c ), and that n (1) > n (2) always holds at all altitudes. Combining this fact with that the eruption occurred 13 hr after filament was broken by reconnection, we conclude that the eruption of P1 was triggered by the loss of equilibrium or the torus instability in the configuration, and magnetic reconnection breaking the filament helped weaken the confinement of the background field on P1, allowing P1 to erupt. Detailed features of the eruption and the corresponding physical scenario were also discussed. |
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 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA |
资助项目 | National Key Ramp ; D Program of China[2022YFF0503804] ; Strategic Priority Research Programme of the Chinese Academy of Sciences[XDA17040507] ; National Natural Science Foundation of China (NSFC)[11 933 009] ; Yunling Scholar Project of Yunnan Province ; Yunnan Province Scientist Workshop of Solar Physics |
WOS关键词 | CORONAL MASS EJECTIONS ; FLUX ROPE ; SOLAR FILAMENT ; MULTIWAVELENGTH OBSERVATIONS ; SLOW RISE ; EVOLUTION ; PROMINENCES ; MECHANISM ; DYNAMICS ; MODEL |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:001044883600001 |
资助机构 | National Key Ramp ; D Program of China[2022YFF0503804] ; Strategic Priority Research Programme of the Chinese Academy of Sciences[XDA17040507] ; National Natural Science Foundation of China (NSFC)[11 933 009] ; Yunling Scholar Project of Yunnan Province ; Yunnan Province Scientist Workshop of Solar Physics |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26166] |
专题 | 云南天文台_太阳物理研究组 |
通讯作者 | Kang KF(康凯锋) |
作者单位 | 1.School of Astronomy and Space Science and Key Laboratory for Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210023, China 2.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, China; 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China; 4.University of Chinese Academy of Sciences, Beijing 100049, China; 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; kkf@ynao.ac.cn, jlin@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Kang KF,Guo, Yang,Li Y,et al. Breaking of Large-Scale Filament due to Magnetic Reconnection and Consequent Partial Eruption[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(9). |
APA | Kang KF,Guo, Yang,Li Y,Wang JX,&Lin J.(2023).Breaking of Large-Scale Filament due to Magnetic Reconnection and Consequent Partial Eruption.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(9). |
MLA | Kang KF,et al."Breaking of Large-Scale Filament due to Magnetic Reconnection and Consequent Partial Eruption".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.9(2023). |
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