Filament Eruption and Its Reformation Caused by Emerging Magnetic Flux
文献类型：期刊论文
| 作者 | Yang, Bo1,2,3; Chen, Huadong3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019-03-20 |
| 卷号 | 874期号:1页码:14 |
| 关键词 | Sun: activity Sun: coronal mass ejections (CMEs) Sun: filaments, prominences Sun: flares Sun: magnetic fields |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab0c9e |
| 英文摘要 | We present observations of the eruption and then reformation of a filament caused by its nearby emerging magnetic flux. Driven by the emerging magnetic flux, the emerging positive fluxes moved toward and canceled with their nearby negative fluxes, where the negative ends of a filament channel beneath the filament and a bundle of left-skewed coronal loops overlying the filament were anchored. Complemented by the nonlinear force-free field extrapolation, we find that the coronal magnetic field lines associated with the filament channel and the emerging magnetic fields consist of sheared field lines. Prior to the filament eruption, unambiguous observational evidence indicates that multiple interactions occurred between the emerging magnetic fields and the left-skewed coronal loops, implying a tether-weakening reconnection. Specifically, during the final episode of the tether-weakening reconnection, a remarkable sigmoid structure was formed and lifted up together with the filament. Accordingly, we speculate that the tether-weakening reconnection probably destabilized the filament system and triggered its rise. Subsequently, the filament and the sigmoid structure erupted together and produced a coronal mass ejection. After the eruption, the emerging magnetic fields continued to reconnect with the remaining filament channel, leading to the reformation of the filament. This observation strongly supports the idea that emerging magnetic flux plays an important role in triggering the filament to erupt, and the filament is reformed by magnetic reconnection between the emerging magnetic fields and its nearby filament channel. |
| WOS关键词 | CORONAL MASS EJECTIONS ; ACTIVE-REGION ; HELICAL FLUX ; PROMINENCE ; EMERGENCE ; ROPE ; FLARE ; FIELD ; RECONNECTION ; MODELS |
| 资助项目 | Natural Science Foundation of China[11703084] ; Natural Science Foundation of China[11633008] ; Natural Science Foundation of China[11873088] ; Natural Science Foundation of China[11573012] ; CAS "Light of West China" Program ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences[KLSA201809] ; CAS[QYZDJ-SSW-SLH012] ; Project of the Group for Innovation of Yunnan Province |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000462738400014 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; CAS ; CAS ; Project of the Group for Innovation of Yunnan Province ; Project of the Group for Innovation of Yunnan Province ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; CAS ; CAS ; Project of the Group for Innovation of Yunnan Province ; Project of the Group for Innovation of Yunnan Province ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; CAS ; CAS ; Project of the Group for Innovation of Yunnan Province ; Project of the Group for Innovation of Yunnan Province ; Natural Science Foundation of China ; Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences ; CAS ; CAS ; Project of the Group for Innovation of Yunnan Province ; Project of the Group for Innovation of Yunnan Province |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/25648]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Yang, Bo |
| 作者单位 | 1.Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China 2.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Bo,Chen, Huadong. Filament Eruption and Its Reformation Caused by Emerging Magnetic Flux[J]. ASTROPHYSICAL JOURNAL,2019,874(1):14. |
| APA | Yang, Bo,&Chen, Huadong.(2019).Filament Eruption and Its Reformation Caused by Emerging Magnetic Flux.ASTROPHYSICAL JOURNAL,874(1),14. |
| MLA | Yang, Bo,et al."Filament Eruption and Its Reformation Caused by Emerging Magnetic Flux".ASTROPHYSICAL JOURNAL 874.1(2019):14. |
入库方式： OAI收割
来源：国家天文台
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