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THE CONTRACTION OF OVERLYING CORONAL LOOP AND THE ROTATING MOTION OF A SIGMOID FILAMENT DURING ITS ERUPTION
Yan XL(闫晓理)1,2; Pan, GM3; Liu, JH2,4; Qu ZQ(屈中权)1; Xue ZK(薛志科)1; Deng LH(邓林华)1; Ma L(马琳)1; Kong DF(孔德芳)1
Source PublicationASTRONOMICAL JOURNAL
2013-06
Volume145Issue:6Pages:153-162
DOI10.1088/0004-6256/145/6/153
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: activity Sun: filaments, prominences Sun: magnetic topology Sun: surface magnetism
Abstract

We present an observation of overlying coronal loop contraction and rotating motion of the sigmoid filament during its eruption on 2012 May 22 observed by the Solar Dynamics Observatory (SDO). Our results show that the twist can be transported into the filament from the lower atmosphere to the higher atmosphere. The successive contraction of the coronal loops was due to a suddenly reduced magnetic pressure underneath the filament, which was caused by the rising of the filament. Before the sigmoid filament eruption, there was a counterclockwise flow in the photosphere at the right feet of the filament and the contraction loops and a convergence flow at the left foot of the filament. The hot and cool materials have inverse motion along the filament before the filament eruption. Moreover, two coronal loops overlying the filament first experienced brightening, expansion, and contraction successively. At the beginning of the rising and rotation of the left part of the filament, the second coronal loop exhibited rapid contraction. The top of the second coronal loop also showed counterclockwise rotation during the contraction process. After the contraction of the second loop, the left part of the filament rotated counterclockwise and expanded toward the right of NOAA AR 11485. During the filament expansion, the right part of the filament also exhibited counterclockwise rotation like a tornado.

Funding ProjectNational Science Foundation of China (NSFC)[10903027] ; National Science Foundation of China (NSFC)[11078005] ; National Science Foundation of China (NSFC)[40636031] ; National Science Foundation of China (NSFC)[11178016] ; Yunnan Science Foundation of China[2009CD120] ; Key Laboratory of Solar Activity of CAS[KLSA201220] ; Key Laboratory of Solar Activity of CAS[KLSA201227] ; HeBei Natural Science Foundation of China[A2010001942] ; Youth innovation promotion association of CAS ; National Basic Research Program of China 973[G2011CB811400]
Funding OrganizationNational Science Foundation of China (NSFC)[10903027, 11078005, 40636031, 11178016] ; Yunnan Science Foundation of China[2009CD120] ; Key Laboratory of Solar Activity of CAS[KLSA201220, KLSA201227] ; HeBei Natural Science Foundation of China[A2010001942] ; Youth innovation promotion association of CAS ; National Basic Research Program of China 973[G2011CB811400]
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
ISSN0004-6256
URL查看原文
Archive Date2013-05-06
WOS IDWOS:000319167400010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE-REGION FILAMENTS ; MASS EJECTIONS ; FLUX ROPES ; MAGNETIC RECONNECTION ; KINK INSTABILITY ; SOLAR-FLARES ; YOHKOH SXT ; QUIET SUN ; SHRINKAGE ; FIELD
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6232
Collection太阳物理研究组
Corresponding AuthorYan XL(闫晓理)
Affiliation1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing 314001, China
4.Department of Physics, Shijiazhuang University, Shijiazhuang 050035, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yan XL,Pan, GM,Liu, JH,et al. THE CONTRACTION OF OVERLYING CORONAL LOOP AND THE ROTATING MOTION OF A SIGMOID FILAMENT DURING ITS ERUPTION[J]. ASTRONOMICAL JOURNAL,2013,145(6):153-162.
APA Yan XL.,Pan, GM.,Liu, JH.,Qu ZQ.,Xue ZK.,...&Kong DF.(2013).THE CONTRACTION OF OVERLYING CORONAL LOOP AND THE ROTATING MOTION OF A SIGMOID FILAMENT DURING ITS ERUPTION.ASTRONOMICAL JOURNAL,145(6),153-162.
MLA Yan XL,et al."THE CONTRACTION OF OVERLYING CORONAL LOOP AND THE ROTATING MOTION OF A SIGMOID FILAMENT DURING ITS ERUPTION".ASTRONOMICAL JOURNAL 145.6(2013):153-162.
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