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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; Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2013-06
卷号145期号:6页码:153-162
DOI10.1088/0004-6256/145/6/153
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Magnetic Topology Sun: Filaments Sun: Surface Magnetism Prominences
摘要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.
项目资助者National 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]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2013-05-06
WOS记录号WOS:000319167400010
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE-REGION FILAMENTS ; MASS EJECTIONS ; FLUX ROPES ; MAGNETIC RECONNECTION ; KINK INSTABILITY ; SOLAR-FLARES ; YOHKOH SXT ; QUIET SUN ; SHRINKAGE ; FIELD
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6232
专题太阳物理研究组
通讯作者Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
作者单位1.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
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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.,...&Yan, XL .(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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