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题名: Successive Two-sided Loop Jets Caused by Magnetic Reconnection between Two Adjacent Filamentary Threads
作者: Tian, Zhanjun; Liu, Yu; Shen, Yuandeng; Elmhamdi, Abouazza; Su, Jiangtao; Liu, Ying D.; Kordi, Ayman. S.
作者部门: 空间科学部
通讯作者: Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China. ; Shen, YD (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China. ; Shen, YD (reprint author), Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China. ; Shen, YD (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Geospace Environm, Hefei 230026, Peoples R China. ; Shen, YD (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
关键词: Sun: activity ; Sun: filaments ; prominences ; Sun: flares ; Sun: magnetic fields
刊名: ASTROPHYSICAL JOURNAL
ISSN号: 0004-637X
出版日期: 2017
卷号: 845, 期号:2
收录类别: SCI
项目资助者: Natural Science Foundation of China [11533009, 11403097, 11633008] ; Yunnan Science Foundation [2015FB191, 2017FB006] ; Specialized Research Fund for State Key Laboratories ; Key Laboratory of Solar Activity of Chinese Academy of Sciences [KLSA201601] ; Youth Innovation Promotion Association of Chinese Academy of Sciences [2014047] ; Key Laboratory of Geospace Environment, CAS, University of Science & Technology of China ; King Saud University, College of Science Research Center
英文摘要: We present observational analysis of two successive two-sided loop jets observed by the ground-based New Vacuum Solar Telescope and the space-borne Solar Dynamics Observatory. The two successive two-sided loop jets manifested similar evolution processes and both were associated with the interaction of two small-scale adjacent filamentary threads, magnetic emerging, and cancellation processes at the jet's source region. High temporal and high spatial resolution observations reveal that the two adjacent ends of the two filamentary threads are rooted in opposite magnetic polarities within the source region. The two threads approached each other, and then an obvious brightening patch is observed at the interaction position. Subsequently, a pair of hot plasma ejections are observed heading in opposite directions along the paths of the two filamentary threads at a typical speed for two-sided loop jets of the order 150 km s(-1). Close to the end of the second jet, we report the formation of a bright hot loop structure at the source region, which suggests the formation of new loops during the interaction. Based on the observational results, we propose that the observed two-sided loop jets are caused by magnetic reconnection between the two adjacent filamentary threads, largely different from the previous scenario that a two-sided loop jet is generated by magnetic reconnection between an emerging bipole and the overlying horizontal magnetic fields.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6035
Appears in Collections:空间科学部_期刊论文

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