The causality between the rapid rotation of a sunspot and an X3.4 flare

doi:10.1088/1674-4527/9/5/010

YNAO OpenIR > 太阳物理研究组

	The causality between the rapid rotation of a sunspot and an X3.4 flare
	Yan XL(闫晓理)1,2 ; Qu ZQ(屈中权)1 ; Xu, CL 3; Xue ZK(薛志科)1,2 ; Kong, DF 4; Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2009-05
卷号	9 期号:5 页码:596-602
DOI	10.1088/1674-4527/9/5/010
产权排序	第1完成单位
收录类别	SCI
关键词	Sun: Sunspots Sun: Flares Sun: Magnetic Fields
摘要	Using multi-wavelength data of Hinode, the rapid rotation of a sunspot in active region NOAA 10930 is studied in detail. We found extraordinary counterclockwise rotation of the sunspot with positive polarity before an X3.4 flare. From a series of vector magnetograms, it is found that magnetic force lines are highly sheared along the neutral line accompanying the sunspot rotation. Furthermore, it is also found that sheared loops and an inverse S-shaped magnetic loop in the corona formed gradually after the sunspot rotation. The X3.4 flare can be reasonably regarded as a result of this movement. A detailed analysis provides evidence that sunspot rotation leads to magnetic field lines twisting in the photosphere. The twist is then transported into the corona and triggers flares.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1674-4527
URL	查看原文
归档日期	2009-04-20
WOS记录号	WOS:000266398200010
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	VECTOR MAGNETIC-FIELDS ; SIGMOIDAL ACTIVE-REGION ; CORONAL MASS EJECTIONS ; MAJOR SOLAR EVENT ; HINODE MISSION ; JULY 14 ; EVOLUTION ; CANCELLATION ; TELESCOPE ; EMERGENCE
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/6138
专题	太阳物理研究组
通讯作者	Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China 3.Yunnan Normal University, Kunming 650092, China 4.Jiaxing University, Jiaxing 314001, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Yan XL,Qu ZQ,Xu, CL,et al. The causality between the rapid rotation of a sunspot and an X3.4 flare[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(5):596-602.
APA	Yan XL,Qu ZQ,Xu, CL,Xue ZK,Kong, DF,&Yan, XL .(2009).The causality between the rapid rotation of a sunspot and an X3.4 flare.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(5),596-602.
MLA	Yan XL,et al."The causality between the rapid rotation of a sunspot and an X3.4 flare".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.5(2009):596-602.

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