Observational Signatures of Tearing Instability in the Current Sheet of a Solar Flare | |
Lu, Lei5,6; Feng, Li5; Warmuth, Alexander1; Veronig, Astrid M.2; Huang, Jing6; Liu, Siming4; Gan, Weiqun5; Ning, Zongjun5; Ying, Beili5; Gao GN(高冠男)3 | |
刊名 | ASTROPHYSICAL JOURNAL LETTERS |
2022 | |
卷号 | 924期号:1 |
ISSN号 | 2041-8205 |
DOI | 10.3847/2041-8213/ac42c6 |
产权排序 | 第6完成单位 |
文献子类 | Article |
英文摘要 | Magnetic reconnection is a fundamental physical process converting magnetic energy into not only plasma energy but also particle energy in various astrophysical phenomena. In this Letter, we show a unique data set of a solar flare where various plasmoids were formed by a continually stretched current sheet. Extreme ultraviolet images captured reconnection inflows, outflows, and particularly the recurring plasma blobs (plasmoids). X-ray images reveal nonthermal emission sources at the lower end of the current sheet, presumably as large plasmoids with a sufficiently amount of energetic electrons trapped in them. In the radio domain, an upward, slowly drifting pulsation structure, followed by a rare pair of oppositely drifting structures, was observed. These structures are supposed to map the evolution of the primary and the secondary plasmoids formed in the current sheet. Our results on plasmoids at different locations and scales shed important light on the dynamics, plasma heating, particle acceleration, and transport processes in the turbulent current sheet and provide observational evidence for the cascading magnetic reconnection process. |
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 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | NSFCNational Natural Science Foundation of China (NSFC)[12103090] ; NSFCNational Natural Science Foundation of China (NSFC)[U1731241] ; NSFCNational Natural Science Foundation of China (NSFC)[11921003] ; NSFCNational Natural Science Foundation of China (NSFC)[11973012] ; Sino-German Science Center[M-0068] ; CAS Strategic Pioneer Program on Space Science[XDA15018300] ; CAS Strategic Pioneer Program on Space Science[XDA15052200] ; CAS Strategic Pioneer Program on Space Science[XDA15320103] ; CAS Strategic Pioneer Program on Space Science[XDA15320301] ; National Key R&D Program of China[2018YFA0404200] ; CAS Key Laboratory of Solar Activity[KLSA202113] ; Youth Innovation Promotion Association ; German Space Agency DLRHelmholtz AssociationGerman Aerospace Centre (DLR)[50QL 0001] ; Austrian Science Fund (FWF)Austrian Science Fund (FWF)[P27292-N20] |
WOS关键词 | SLOWLY DRIFTING STRUCTURES ; X-RAY ; MAGNETIC RECONNECTION ; ENERGY ; MODEL ; EJECTION ; FRAGMENTATION ; ACCELERATION ; PULSATIONS ; EMISSION |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000738261900001 |
资助机构 | NSFCNational Natural Science Foundation of China (NSFC)[12103090, U1731241, 11921003, 11973012] ; Sino-German Science Center[M-0068] ; CAS Strategic Pioneer Program on Space Science[XDA15018300, XDA15052200, XDA15320103, XDA15320301] ; National Key R&D Program of China[2018YFA0404200] ; CAS Key Laboratory of Solar Activity[KLSA202113] ; Youth Innovation Promotion Association ; German Space Agency DLRHelmholtz AssociationGerman Aerospace Centre (DLR)[50QL 0001] ; Austrian Science Fund (FWF)Austrian Science Fund (FWF)[P27292-N20] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24760] |
专题 | 云南天文台_射电天文研究组 |
通讯作者 | Feng, Li |
作者单位 | 1.Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany; 2.Institute of Physics & Kanzelhöhe Observatory for Solar and Environmental Research, University of Graz, A-8010 Graz, Austria; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China 4.School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, People's Republic of China; 5.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210033, People's Republic of China lfeng@pmo.ac.cn; 6.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People's Republic of China; |
推荐引用方式 GB/T 7714 | Lu, Lei,Feng, Li,Warmuth, Alexander,et al. Observational Signatures of Tearing Instability in the Current Sheet of a Solar Flare[J]. ASTROPHYSICAL JOURNAL LETTERS,2022,924(1). |
APA | Lu, Lei.,Feng, Li.,Warmuth, Alexander.,Veronig, Astrid M..,Huang, Jing.,...&Gao GN.(2022).Observational Signatures of Tearing Instability in the Current Sheet of a Solar Flare.ASTROPHYSICAL JOURNAL LETTERS,924(1). |
MLA | Lu, Lei,et al."Observational Signatures of Tearing Instability in the Current Sheet of a Solar Flare".ASTROPHYSICAL JOURNAL LETTERS 924.1(2022). |
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