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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.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2008-12-21
Volume391Issue:4Pages:1887-1892
DOI10.1111/j.1365-2966.2008.14002.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Flares Sun: Rotation Sunspots
AbstractTo 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.
Funding OrganizationNational Science Foundation of China (NSFC)(10673031, 40636031) ; National Basic Research Program of China(G2006CB806301)
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2008-12-15
WOS IDWOS:000261617000030
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE REGIONS ; X17 FLARE ; MAGNETIC-CONFIGURATION ; OCTOBER 2003 ; MAGNETOGRAMS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6116
Collection太阳物理研究组
Corresponding AuthorYan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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