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THE FORMATION OF AN INVERSE S-SHAPED ACTIVE-REGION FILAMENT DRIVEN BY SUNSPOT MOTION AND MAGNETIC RECONNECTION
Yan,X. L.1; Priest,E. R.2; Guo,Q. L.3; Xue,Z. K.1,4; Wang,J. C.1; Yang,L. H.1,4
2016-11-14
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume832Issue:1
AbstractABSTRACT We present a detailed study of the formation of an inverse S-shaped filament prior to its eruption in active region NOAA 11884 from 2013 October 31 to November 2. In the initial stage, clockwise rotation of a small positive sunspot around the main negative trailing sunspot formed a curved filament. Then the small sunspot cancelled with the negative magnetic flux to create a longer active-region filament with an inverse S-shape. At the cancellation site a brightening was observed in UV and EUV images and bright material was transferred to the filament. Later the filament erupted after cancellation of two opposite polarities below the upper part of the filament. Nonlinear force-free field extrapolation of vector photospheric fields suggests that the filament may have a twisted structure, but this cannot be confirmed from the current observations.
KeywordSun: activity Sun: filaments, prominences Sun: magnetic fields Sun: photosphere sunspots
DOI10.3847/0004-637X/832/1/23
Language英语
WOS IDIOP:0004-637X-832-1-23
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/36204
Collection中国科学院国家天文台
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; yanxl@ynao.ac.cn
2.Mathematics Institute, University of St Andrews, St Andrews, KY16 9SS, UK
3.College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing 314001, China
4.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Recommended Citation
GB/T 7714
Yan,X. L.,Priest,E. R.,Guo,Q. L.,et al. THE FORMATION OF AN INVERSE S-SHAPED ACTIVE-REGION FILAMENT DRIVEN BY SUNSPOT MOTION AND MAGNETIC RECONNECTION[J]. The Astrophysical Journal,2016,832(1).
APA Yan,X. L.,Priest,E. R.,Guo,Q. L.,Xue,Z. K.,Wang,J. C.,&Yang,L. H..(2016).THE FORMATION OF AN INVERSE S-SHAPED ACTIVE-REGION FILAMENT DRIVEN BY SUNSPOT MOTION AND MAGNETIC RECONNECTION.The Astrophysical Journal,832(1).
MLA Yan,X. L.,et al."THE FORMATION OF AN INVERSE S-SHAPED ACTIVE-REGION FILAMENT DRIVEN BY SUNSPOT MOTION AND MAGNETIC RECONNECTION".The Astrophysical Journal 832.1(2016).
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