A Comparative Study between a Failed and a Successful Eruption Initiated from the Same Polarity Inversion Line in AR 11387
文献类型：期刊论文
| 作者 | Liu,Lijuan1; Wang,Yuming2; Zhou,Zhenjun1; Dissauer,Karin3; Temmer,Manuela3; Cui,Jun1,4
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| 刊名 | The Astrophysical Journal
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| 出版日期 | 2018-05-15 |
| 卷号 | 858期号:2 |
| 关键词 | Sun: activity Sun: coronal mass ejections (CMEs) Sun: flares Sun: magnetic fields Sun: photosphere |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aabba2 |
| 英文摘要 | Abstract In this paper, we analyzed a failed and a successful eruption that initiated from the same polarity inversion line within NOAA AR 11387 on 2011 December 25. They both started from a reconnection between sheared arcades, with distinct pre-eruption conditions and eruption details: before the failed one, the magnetic fields of the core region had a weaker non-potentiality; the external fields had a similar critical height for torus instability, and a similar local torus-stable region, but a larger magnetic flux ratio (of low corona and near-surface region) compared to the successful one. During the failed eruption, a smaller Lorentz force impulse was exerted on the outward ejecta; the ejecta had a much slower rising speed. Factors that might lead to the initiation of the failed eruption are identified: (1) a weaker non-potentiality of the core region, and a smaller Lorentz force impulse gave the ejecta a small momentum; (2) the large flux ratio, and the local torus-stable region in the corona provided strong confinements that made the erupting structure regain an equilibrium state. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-858-2-AABBA2 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/21756]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, 519082, People's Republic of China; ljliu@mail.ustc.edu.cn 2.CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China; ymwang@ustc.edu.cn 3.Institute of Physics, University of Graz, Universit?tsplatz 5/II, A-8010 Graz, Austria 4.CAS Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Liu,Lijuan,Wang,Yuming,Zhou,Zhenjun,et al. A Comparative Study between a Failed and a Successful Eruption Initiated from the Same Polarity Inversion Line in AR 11387[J]. The Astrophysical Journal,2018,858(2). |
| APA | Liu,Lijuan,Wang,Yuming,Zhou,Zhenjun,Dissauer,Karin,Temmer,Manuela,&Cui,Jun.(2018).A Comparative Study between a Failed and a Successful Eruption Initiated from the Same Polarity Inversion Line in AR 11387.The Astrophysical Journal,858(2). |
| MLA | Liu,Lijuan,et al."A Comparative Study between a Failed and a Successful Eruption Initiated from the Same Polarity Inversion Line in AR 11387".The Astrophysical Journal 858.2(2018). |
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来源：国家天文台
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