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题名: A Complex Solar Coronal Jet with Two Phases
作者: Chen, Jie; Su, Jiangtao; Deng, Yuanyong; Priest, E. R.
作者部门: 空间科学部
通讯作者: Chen, J (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China. ; Chen, J (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
关键词: magnetic reconnection ; magnetohydrodynamics (MHD) ; Sun: activity ; Sun: corona ; Sun: magnetic fields
刊名: ASTROPHYSICAL JOURNAL
ISSN号: 0004-637X
出版日期: 2017
卷号: 840, 期号:1, 页码:54
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11303048, 11673033, 11373040, 11427901] ; NSFC ; State Key Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences
英文摘要: Jets often occur repeatedly from almost the same location. In this paper, a complex solar jet was observed with two phases to the west of NOAA AR 11513 on 2012 July 2. If it had been observed at only moderate resolution, the two phases and their points of origin would have been regarded as identical. However, at high resolution we find that the two phases merge into one another and the accompanying footpoint brightenings occur at different locations. The phases originate from different magnetic patches rather than being one phase originating from the same patch. Photospheric line of sight (LOS) magnetograms show that the bases of the two phases lie in two different patches of magnetic flux that decrease in size during the occurrence of the two phases. Based on these observations, we suggest that the driving mechanism of the two successive phases is magnetic cancellation of two separate magnetic fragments with an opposite-polarity fragment between them.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6012
Appears in Collections:空间科学部_期刊论文

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