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A discussion of correlations between spiral morphology of sunspot penumbra and high energetic flares
Ding YJ(丁有济); Zhang BR(张柏荣); Li WB(李维宝); Hong QF(洪琴芳); Li ZK(李治凯)
Source PublicationCHINESE ASTRONOMY
1977
Volume1Issue:1Pages:131-152
DOI10.1016/0146-6364(77)90028-7
Contribution Rank第1完成单位
Indexed BySCI
AbstractThe present paper is concerned with a preliminary statistical analysis of the photographical morphology of sunspot groups observed at Yunnan Observatory during March 1970– December 1972. 1. 1. There exists a higher frequency (⩾55%) of flare production in those regions in which persistent (⩾2 days) penumbral spiral structure is observed. 2. 2. There is a close correlation (∼ 84%) between the above mentioned regions and energetic flares. 3. 3. About 90% of energetic flares in the above mentioned regions appeared an average of 3.8 days later after the occurrence of spiral spots. A possible cause and ef effect relation may exist in these phenomena. The above conclusions may be useful in the construction of a flare theory with reference to twisting instability of magnetic field.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0146-6364
URL查看原文
WOS IDWOS:A1977ED56100011
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5988
Collection太阳物理研究组
AffiliationYunnan Observatory, Academia Sinica, China
Recommended Citation
GB/T 7714
Ding YJ,Zhang BR,Li WB,et al. A discussion of correlations between spiral morphology of sunspot penumbra and high energetic flares[J]. CHINESE ASTRONOMY,1977,1(1):131-152.
APA Ding YJ,Zhang BR,Li WB,Hong QF,&Li ZK.(1977).A discussion of correlations between spiral morphology of sunspot penumbra and high energetic flares.CHINESE ASTRONOMY,1(1),131-152.
MLA Ding YJ,et al."A discussion of correlations between spiral morphology of sunspot penumbra and high energetic flares".CHINESE ASTRONOMY 1.1(1977):131-152.
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