A discussion of correlations between spiral morphology of sunspot penumbra and high energetic flares

doi:10.1016/0146-6364(77)90028-7

YNAO OpenIR > 太阳物理研究组

	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)
发表期刊	CHINESE ASTRONOMY
	1977
卷号	1 期号:1 页码:131-152
DOI	10.1016/0146-6364(77)90028-7
产权排序	第1完成单位
收录类别	SCI
摘要	The 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.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0146-6364
URL	查看原文
WOS记录号	WOS:A1977ED56100011
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5988
专题	太阳物理研究组
作者单位	Yunnan Observatory, Academia Sinica, China
推荐引用方式 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.