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 |
DOI | 10.1051/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 |
ISSN | 0365-0138 |
URL | 查看原文 |
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 |
引用统计 | |
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 |
推荐引用方式 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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