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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
Source PublicationASTROPHYSICAL JOURNAL
2015-04-20
Volume803Issue:2
DOI10.1088/0004-637X/803/2/86
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: activity Sun: filaments, prominences Sun: magnetic fields
Abstract

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.

Funding Project973 Program[2011CB811403] ; Natural Science Foundation of China[11173058] ; Natural Science Foundation of China[11273056] ; Natural Science Foundation of China[11333007] ; CAS grant[KJCX2-EW-T07] ; Key Laboratory of Solar Activity of CAS[KLSA201407] ; Western Light Youth Project
Funding Organization973 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
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
Archive Date2015-05-14
WOS IDWOS:000353524500038
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; SUNSPOT ROTATION ; VORTEX FLOWS ; FLUX-DENSITY ; PHOTOSPHERIC FLOWS ; SOLAR PROMINENCES ; HELICITY ; TORNADOES ; MOTION ; FOOTPOINTS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6269
Collection太阳物理研究组
Corresponding AuthorYang B(杨波)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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.(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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