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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)
发表期刊ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
1998-07
卷号131期号:1页码:99-104
DOI10.1051/aas:1998254
产权排序第2完成单位
收录类别SCI
关键词Sun : Activity Sun : Flares Sun : X-rays
摘要The 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0365-0138
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WOS记录号WOS:000074870200012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]NORTH-SOUTH ASYMMETRY ; SUNSPOT AREAS ; ACTIVE ZONES ; SUN ; EVOLUTION ; FIELDS ; INDEX
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6028
专题太阳物理研究组
通讯作者Schmieder, B
作者单位1.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
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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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