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Hemispheric variation of coronal mass ejections in cycle 23
Gao PX(高朋鑫)1,2; Li KJ(李可军)1; Shi XJ(石祥军)1,2; Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2009-12-11
卷号400期号:3页码:1383-1388
DOI10.1111/j.1365-2966.2009.15534.x
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Coronal Mass Ejections (Cmes)
摘要In this paper, we analyse the behaviour of the activity of coronal mass ejection (CME) observed by the Large Angle and Spectrometric Coronagraph Experiment on board the Solar and Heliospheric Observatory (SOHO/LASCO) in cycle 23 from 1997 to 2007 separately for the Northern and Southern hemispheres. The results show the following. (1) At all and low latitudes, the dominant hemisphere of the activity of CME changes from the Northern hemisphere before cycle maxima to the Southern hemisphere after cycle maxima; a southern dominance of the activity of CME is shown to occur in cycle 23. This is consistent with sunspot studies. The relationship between the two lines of the cumulative counts of monthly CME numbers for the Northern and Southern hemispheres is similar to those of monthly sunspot group numbers and sunspot areas. (2) At high latitudes, prior to 2002, the trend of the monthly values of the north-south asymmetry of numbers of CMEs is similar to those of sunspot group numbers and sunspot areas; the relationship between the two lines of the cumulative counts of monthly CME numbers for the Northern and Southern hemispheres is similar to those of sunspot group numbers and sunspot areas. However, after 2001, the trend of dominant hemisphere of the activity of CME at high latitudes is different from those of sunspot group numbers and sunspot areas; the relationship between the two lines of the cumulative counts of monthly CME numbers for the Northern and Southern hemispheres at high latitudes is different from those sunspot group numbers and sunspot areas. Our results seem to suggest that the activity of CME at high latitudes should have close connection with 'rush to the poles'.
项目资助者NSFC [10573034, 40636031] ; National Key Research Science Foundation [2006CB806303] ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2009-12-03
WOS记录号WOS:000272344700017
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]NORTH-SOUTH ASYMMETRY ; SOLAR MAXIMUM MISSION ; STATISTICAL-ANALYSIS ; SUNSPOT ACTIVITY ; FLARE INDEX ; SOLAR-CYCLE-23 ; DISTRIBUTIONS ; CATALOG ; PERIOD
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6129
专题太阳物理研究组
通讯作者Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
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Gao PX,Li KJ,Shi XJ,et al. Hemispheric variation of coronal mass ejections in cycle 23[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,400(3):1383-1388.
APA Gao PX,Li KJ,Shi XJ,&Gao, PX .(2009).Hemispheric variation of coronal mass ejections in cycle 23.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,400(3),1383-1388.
MLA Gao PX,et al."Hemispheric variation of coronal mass ejections in cycle 23".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 400.3(2009):1383-1388.
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