Hemispheric variation of coronal mass ejections in cycle 23

doi:10.1111/j.1365-2966.2009.15534.x

YNAO OpenIR > 太阳物理研究组

	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
DOI	10.1111/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
ISSN	0035-8711
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：23[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
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	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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