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题名:
Relationship between rotating sunspots and flare productivity
作者: Yan XL(闫晓理)1,2; Qu ZQ(屈中权)1; Kong, DF3
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2008-12-21
卷号: 391, 期号:4, 页码:1887-1892
DOI: 10.1111/j.1365-2966.2008.14002.x
学科分类: Astronomy & Astrophysics
产权排序: 第1完成单位
收录类别: SCI
通讯作者: Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China.
关键词: Sun: flares ; Sun: rotation ; sunspots
英文摘要: 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
原文出处: 查看原文
ISSN号: 0035-8711
文章类型: Article
归档日期: 2008-12-15
WOS标题词: Science & Technology ; Physical Sciences
研究领域[WOS]: Astronomy & Astrophysics
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: ACTIVE REGIONS ; X17 FLARE ; MAGNETIC-CONFIGURATION ; OCTOBER 2003 ; MAGNETOGRAMS
WOS记录号: WOS:000261617000030
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/6116
Appears in Collections:太阳物理研究组_期刊论文

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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

Recommended Citation:
Yan XL,Qu ZQ,Kong, DF. Relationship between rotating sunspots and flare productivity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2008,391(4):1887-1892.
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