Observation of a Reversal of Breakout Reconnection Preceding a Jet: Evidence of Oscillatory Magnetic Reconnection?
文献类型：期刊论文
| 作者 | Hong, Junchao1,2,3; Yang, Jiayan2,3; Chen, Huadong1; Bi, Yi2,3; Yang, Bo2,3; Chen, Hechao2,3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 874期号:2页码:9 |
| 关键词 | Sun: activity Sun: chromosphere Sun: corona Sun: filaments, prominences |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab0c9d |
| 英文摘要 | Recent studies have revealed that solar jets involving minifilament eruptions may be initiated under the wellknown magnetic-breakout mechanism. Before or just at the onset of those jets, there should be a current sheet, where breakout magnetic reconnection takes place, between open fields and the outside of the jet-base arcade carrying a minifilament in its core. In this paper we present a jet produced by the eruption of two minifilaments lying at the jet base. A current sheet is directly detected near the jet base before the onset of the eruption, suggesting the magnetic-breakout mechanism. However, we further find that the current sheet undergoes a transition. The current sheet first shortens to zero in length, but then lengthens toward an orthogonal direction relative to its initial orientation. The change of the current sheet gives rise to a reversal of the breakout reconnection, as the inflow and outflow regions before the transition become the outflow and inflow regions after the transition, respectively. We therefore propose that this observation provides evidence for the so-called oscillatory reconnection that is defined by a series of reconnection reversals but not yet proven to exist in the real plasma environment of the solar atmosphere. |
| WOS关键词 | H-ALPHA SURGES ; X-RAY JETS ; CURRENT SHEETS ; CORONAL JETS ; FLUX ; ERUPTIONS ; FILAMENT ; MODEL |
| 资助项目 | Natural Science Foundation of China[11503081] ; Natural Science Foundation of China[11633008] ; Natural Science Foundation of China[11703084] ; Natural Science Foundation of China[11573012] ; Natural Science Foundation of China[11873088] ; CAS program "Light of West China" ; CAS program[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:000463191400005 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; CAS program "Light of West China" ; CAS program "Light of West China" ; CAS program ; CAS program ; 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 program "Light of West China" ; CAS program "Light of West China" ; CAS program ; CAS program ; 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 program "Light of West China" ; CAS program "Light of West China" ; CAS program ; CAS program ; 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 program "Light of West China" ; CAS program "Light of West China" ; CAS program ; CAS program ; 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/114a11/26006]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Hong, Junchao |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China 3.Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hong, Junchao,Yang, Jiayan,Chen, Huadong,et al. Observation of a Reversal of Breakout Reconnection Preceding a Jet: Evidence of Oscillatory Magnetic Reconnection?[J]. ASTROPHYSICAL JOURNAL,2019,874(2):9. |
| APA | Hong, Junchao,Yang, Jiayan,Chen, Huadong,Bi, Yi,Yang, Bo,&Chen, Hechao.(2019).Observation of a Reversal of Breakout Reconnection Preceding a Jet: Evidence of Oscillatory Magnetic Reconnection?.ASTROPHYSICAL JOURNAL,874(2),9. |
| MLA | Hong, Junchao,et al."Observation of a Reversal of Breakout Reconnection Preceding a Jet: Evidence of Oscillatory Magnetic Reconnection?".ASTROPHYSICAL JOURNAL 874.2(2019):9. |
入库方式： OAI收割
来源：国家天文台
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