THE CONTRACTION OF OVERLYING CORONAL LOOP AND THE ROTATING MOTION OF A SIGMOID FILAMENT DURING ITS ERUPTION

	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, GM 3; Liu, JH 2,4; 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
刊名	ASTRONOMICAL JOURNAL
	2013-06
卷号	145 期号:6 页码:153-162
关键词	Sun: activity Sun: filaments Sun: magnetic topology Sun: surface magnetism prominences
ISSN号	0004-6256
通讯作者	Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	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
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-6256/145/6/153/meta
语种	英语
WOS记录号	WOS:000319167400010
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6232]
专题	云南天文台_太阳物理研究组
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
推荐引用方式 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.