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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, CL3; Xue ZK(薛志科)1,2; Kong, DF4; 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
DOI10.1088/1674-4527/9/5/010
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
ISSN1674-4527
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
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被引频次:31[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
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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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