Relationship between rotating sunspots and flare productivity

doi:10.1111/j.1365-2966.2008.14002.x

YNAO OpenIR > 太阳物理研究组

	Relationship between rotating sunspots and flare productivity
	Yan XL(闫晓理)1,2 ; Qu ZQ(屈中权)1 ; Kong, DF3 ; Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China.
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2008-12-21
卷号	391 期号:4 页码:1887-1892
DOI	10.1111/j.1365-2966.2008.14002.x
产权排序	第1完成单位
收录类别	SCI
关键词	Sun: Flares Sun: Rotation Sunspots
摘要	To understand both the effects of dynamo and the nature of flaring activity, we identified rotating sunspots and then classified them into six types by using the data of Transition Region and Coronal Explorer and Solar and Heliospheric Observatory/Michelson Doppler Imager in Solar Cycle 23. The classification is made by their rotating directions and relative positions (leading or following sunspots), while the corresponding samples are given. The statistics of flares relevant to these sunspots are presented to show the relationship between different types of rotating sunspots and their flare productivity. It is found that some types of rotating sunspots are in favour of producing flares, and, outstandingly those active regions with sunspots of rotating direction opposite to the differential rotation have much higher strong (X-class) flare productivity. Furthermore, we found that the ratio of the number of flares defined in this paper is inconsistent to the number evolution of the six types of rotating sunspots. The maximum ratios of the six types except type VI appear after the maximum year. Additionally, there are total 60 possible patterns of rotating sunspots belonging to the six types, among which 35 patterns are found but 25 patterns remain to be discovered in other solar cycles. These results not only place further constraints on the dynamo theory but also reveal that the rotation motions of sunspots can be greatly helpful to the energy buildup of solar flares.
项目资助者	National Science Foundation of China (NSFC)(10673031, 40636031) ; National Basic Research Program of China(G2006CB806301)
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0035-8711
URL	查看原文
归档日期	2008-12-15
WOS记录号	WOS:000261617000030
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ACTIVE REGIONS ; X17 FLARE ; MAGNETIC-CONFIGURATION ; OCTOBER 2003 ; MAGNETOGRAMS
引用统计	被引频次：51[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/114a53/6116
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, Yunnan, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.Graduate School of Chinese Academy of Sciences, Zhongguancun, Beijing, China 3.Jiaxing University, Jiaxing, Zhejiang, 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,Kong, DF,et al. Relationship between rotating sunspots and flare productivity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2008,391(4):1887-1892.
APA	Yan XL,Qu ZQ,Kong, DF,&Yan, XL .(2008).Relationship between rotating sunspots and flare productivity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,391(4),1887-1892.
MLA	Yan XL,et al."Relationship between rotating sunspots and flare productivity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 391.4(2008):1887-1892.

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