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Statistical analysis of the X-ray flares (M >= 1) during the maximum period of solar cycle 22
Li KJ(李可军); Schmieder, B; Li QS(李秋莎)
Source PublicationASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
1998-07
Volume131Issue:1Pages:99-104
DOI10.1051/aas:1998254
Contribution Rank第2完成单位
Indexed BySCI
KeywordSun : Activity Sun : Flares Sun : X-rays
AbstractThe data of the X-ray flare events of class M greater than or equal to 1 during the interval of 1987 to 1992 corresponding to the maximum period of the 22nd solar cycle have been investigated to study the North-South (N-S) and West-East (W-E) asymmetries. During that period it has been shown the existence of a real N-S asymmetry. That confirms recent studies done by using other indicators, such as sunspot areas (Oliver & Ballester 1994). The E-W asymmetry during that period is not significant but a non uniform flare distribution in longitude has been evidenced. That result is also in good agreement with the work made by Joshi (1995) using H alpha flares for the same time period. We have shown that the behaviour of the reverse tendency of Solar Cycle 21 to exhibit a predominance of the southern hemisphere in the N-S asymmetry compared to the previous Solar Cycles (19 and 20) is maintained for Solar Cycle 22. A long period cycle of the N-S asymmetry could be suspected.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0365-0138
URL查看原文
WOS IDWOS:000074870200012
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordNORTH-SOUTH ASYMMETRY ; SUNSPOT AREAS ; ACTIVE ZONES ; SUN ; EVOLUTION ; FIELDS ; INDEX
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6028
Collection太阳物理研究组
Corresponding AuthorSchmieder, B
Affiliation1.CCAST (World Laboratory), P.O. Box 8730, Beijing, 100080, China
2.Yunnan Observatory, Kunming, China
3.Observatoire de Paris, Section de Meudon, URA 2080, 92195 Meudon Principal Cedex, France
4.University of Oslo, Blindern, P.O. Box 1029, Norway
Recommended Citation
GB/T 7714
Li KJ,Schmieder, B,Li QS. Statistical analysis of the X-ray flares (M >= 1) during the maximum period of solar cycle 22[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1998,131(1):99-104.
APA Li KJ,Schmieder, B,&Li QS.(1998).Statistical analysis of the X-ray flares (M >= 1) during the maximum period of solar cycle 22.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,131(1),99-104.
MLA Li KJ,et al."Statistical analysis of the X-ray flares (M >= 1) during the maximum period of solar cycle 22".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 131.1(1998):99-104.
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