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Association of X-class flares with sunspot groups of various classes in Cycles 22 and 23
Gao PX(高朋鑫)1,2,3
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2019-04-01
Volume484Issue:4Pages:5692-5701
DOI10.1093/mnras/stz362
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: activity Sun: flares sunspots
Abstract

We investigate the association between X-class flares and sunspot groups (SGs) of various classes in Solar Cycles (SCs) 22 and 23 and find the following results. (1) During SCs 22 and 23, 96.2 per cent and 94.3 per cent of X-class flares are associated with large SGs (Zurich classes D, E, and F), respectively; the percentages of large SGs associated with X-class flares are significantly higher than those of the other Zurich class SGs; however, the total number of large SGs in SC 22 is about 80 per cent of that in SC 23, while, the total number of X-class flares in SC 22 is 1.22 times that of SC 23. (2) During SCs 22 and 23, 83.1 per cent and 79.4 per cent of X-class flares are associated with penumbral class k SGs, respectively; the percentages of penumbral class k SGs associated with X-class flares are significantly higher than those of the other penumbral class SGs; however, the ratio of the maximum number of penumbral class k SGs during SC 22 to SC 23 is 1.10, while, the ratio of the maximum number of X-class flares during SC 22 to SC 23 is 2.73. (3) 49.3 per cent and 55.2 per cent of X-class flares occur in beta delta or beta gamma delta or gamma delta SGs in SCs 22 and 23, respectively; the total (maximum) numbers of beta gamma delta and gamma delta SGs in SC 22 are about 63 per cent (53 per cent) and 33 per cent of those in SC 23, respectively; the total (maximum) number of beta delta SGs in SC 22 is 3.03 (5.13) times that of SC 23.

Funding ProjectNational Natural Science Foundation of China[11673061] ; National Natural Science Foundation of China[11633008] ; National Natural Science Foundation of China[11703085] ; Foundation of Key Laboratory of Solar Activity of National Astronomical Observatories of Chinese Academy of Sciences[KLSA201706] ; Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China[11673061, 11633008, 11703085] ; Foundation of Key Laboratory of Solar Activity of National Astronomical Observatories of Chinese Academy of Sciences[KLSA201706] ; Chinese Academy of Sciences
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000462414400086
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMAGNETIC CLASSIFICATION ; DEPENDENCE ; REGIONS ; RATES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/19658
Collection太阳物理研究组
Corresponding AuthorGao PX(高朋鑫)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Gao PX. Association of X-class flares with sunspot groups of various classes in Cycles 22 and 23[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,484(4):5692-5701.
APA Gao PX.(2019).Association of X-class flares with sunspot groups of various classes in Cycles 22 and 23.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,484(4),5692-5701.
MLA Gao PX."Association of X-class flares with sunspot groups of various classes in Cycles 22 and 23".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 484.4(2019):5692-5701.
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