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THE RAPID FORMATION OF A FILAMENT CAUSED BY MAGNETIC RECONNECTION BETWEEN TWO SETS OF DARK THREADLIKE STRUCTURES
Yang B(杨波)1,2; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Yu SP(余顺平)1,2; Xu Z(徐喆)1,2; Yang, B (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2016
卷号816期号:1
DOI10.3847/0004-637X/816/1/41
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Atmosphere Sun: Magnetic Fields Sun: Filaments Prominences
摘要Taking advantage of the high spatiotemporal resolution observations from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory, we present rare observations of the rapid formation of a filament caused by magnetic reconnection between two sets of dark threadlike structures. The two sets of dark threadlike structures belong to distinct flux systems with their adjacent ends anchored in an opposite-polarity magnetic field region, where the calculated photospheric velocity field shows that converging flows dominate there. Due to the converging flows, opposite-polarity magnetic flux converged and then canceled, leading to the formation of extreme ultraviolet (EUV) brightening that spread in opposite directions along the spine of the dark threadlike structures. Meanwhile, very weak remote brightening in the other terminals of the dark threadlike structures, as well as EUV loops, which rooted in the opposite-polarity magnetic field region, appeared. In addition, all of the AIA Fe line observations reveal that a flux rope was formed and underwent a rolling motion during the fadeaway of the EUV brightening. Soon after, as the EUV brightening disappeared, a filament that is very likely composed of two sets of intertwined dark threadlike structures was formed. Via differential emission measure (EM) analysis, it is found that both the EM and temperature of the plasma around the flux-canceling site increased during the brightening, implying that there, magnetic reconnection may occur to heat the plasma. These observations provide evidence that the filament is formed by magnetic reconnection associated with flux convergence and cancellation, and the magnetic structure of the filament is most likely a flux rope.
项目资助者Natural Science Foundation of China(11473065,11273056,11333007,11403098) ; Yunnan Province Natural Science Foundation (NSF)(2013FB085)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2016-12-14
WOS记录号WOS:000368225100041
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; ACTIVE-REGION FILAMENT ; FLUX-ROPE ; HELICAL FLUX ; QUIESCENT PROMINENCES ; PHOTOSPHERIC FLOWS ; SOLAR PROMINENCES ; QUIET SUN ; ERUPTION ; EMERGENCE
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9403
专题太阳物理研究组
通讯作者Yang, B (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
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Yang B,Jiang YC,Yang JY,et al. THE RAPID FORMATION OF A FILAMENT CAUSED BY MAGNETIC RECONNECTION BETWEEN TWO SETS OF DARK THREADLIKE STRUCTURES[J]. ASTROPHYSICAL JOURNAL,2016,816(1).
APA Yang B,Jiang YC,Yang JY,Yu SP,Xu Z,&Yang, B .(2016).THE RAPID FORMATION OF A FILAMENT CAUSED BY MAGNETIC RECONNECTION BETWEEN TWO SETS OF DARK THREADLIKE STRUCTURES.ASTROPHYSICAL JOURNAL,816(1).
MLA Yang B,et al."THE RAPID FORMATION OF A FILAMENT CAUSED BY MAGNETIC RECONNECTION BETWEEN TWO SETS OF DARK THREADLIKE STRUCTURES".ASTROPHYSICAL JOURNAL 816.1(2016).
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