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THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN
Yang B(杨波)1,2,3; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Hong JC(洪俊超)1; Xu Z(徐喆)1,2; Yang, B (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2015-04-20
卷号803期号:2
DOI10.1088/0004-637X/803/2/86
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Magnetic Fields Sun: Filaments Prominences
摘要We present the first observation of the formation and eruption of a small circular filament driven by a rotating network magnetic field (RNF) in the quiet Sun. In the negative footpoint region of an inverse J-shaped dextral filament, the RNF was formed by the convergence to supergranular junctions of several magnetic flux patches of the same polarity, and it then rotated counterclockwise (CCW) for approximately 11 hr and showed up as a CCW rotating EUV cyclone, during which time the filament gradually evolved into a circular filament that surrounded the cyclone. When the calculated convergence and vortex flows appeared around the RNF during its formation and rotation phases, the injected magnetic helicity calculation also showed negative helicity accumulation during the RNF rotation that was consistent with the dextral chirality of the filament. Finally, the RNF rotation stopped and the cyclone disappeared, and, probably due to an emerging bipole and its forced cancellation with the RNF, the closure filament underwent an eruption along its axis in the (clockwise) direction opposite to the rotation directions of the RNF and cyclone. These observations suggest that the RNFs might play an important role in the formation of nearby small-scale circular filaments as they transport and inject magnetic energy and helicity, and the formation of the EUV cyclones may be a further manifestation of the helicity injected into the corona by the rotation of the RNFs in the photosphere. In addition, the new emerging bipole observed before the filament eruption might be responsible for destabilizing the system and triggering the magnetic reconnection which proves useful for the filament eruption.
项目资助者973 Program [2011CB811403] ; Natural Science Foundation of China [11173058, 11273056, 11333007] ; CAS grant [KJCX2-EW-T07] ; Key Laboratory of Solar Activity of CAS [KLSA201407] ; Western Light Youth Project
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2015-05-14
WOS记录号WOS:000353524500038
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; SUNSPOT ROTATION ; VORTEX FLOWS ; FLUX-DENSITY ; PHOTOSPHERIC FLOWS ; SOLAR PROMINENCES ; HELICITY ; TORNADOES ; MOTION ; FOOTPOINTS
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被引频次:10[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/114a53/6269
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 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
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GB/T 7714
Yang B,Jiang YC,Yang JY,et al. THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN[J]. ASTROPHYSICAL JOURNAL,2015,803(2).
APA Yang B,Jiang YC,Yang JY,Hong JC,Xu Z,&Yang, B .(2015).THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN.ASTROPHYSICAL JOURNAL,803(2).
MLA Yang B,et al."THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN".ASTROPHYSICAL JOURNAL 803.2(2015).
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