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Speed distributions of CMEs in cycle 23 at low and high latitudes
Gao PX(高朋鑫)1,2; Li KJ(李可军)1; Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2008-04
Volume8Issue:2Pages:146-152
DOI10.1088/1009-9271/8/2/02
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun : Activity Sun : Coronal Mass Ejections (Cmes)
AbstractWe analyzed the speed (v) distributions of H 584 coronal mass ejections (CMEs) observed by the Large Angle and Spectrometric Coronagraph Experiment on board the Solar and Heliospheric Observatory (SOHO/LASCO) in cycle 23 from 1996 to 2006. We find that the speed distributions for high-latitude (HL) and low-latitude (LL) CME events are nearly identical and to a good approximation they can be fitted with a lognormal distribution. This finding implies that statistically the same driving mechanism of a nonlinear nature is acting in both HL and LL CME events, and CMEs are intrinsically associated with the source's magnetic structure on large spatial scales. Statistically, the HL CMEs are slightly slower than the LL CMEs. For HL and LL CME events respectively, the speed distributions for accelerating and decelerating events are nearly identical and also to a good approximation they can be both fitted with a lognormal distribution, thus supplementing the results obtained by Yurchyshyn et al.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2008-04-16
WOS IDWOS:000255262600002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; SMM OBSERVATIONS ; MAGNETIC CLOUDS ; ERUPTION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6125
Collection太阳物理研究组
Corresponding AuthorGao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.Graduate School of Chinese Academy of Sciences, Beijing 100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Gao PX,Li KJ,Gao, PX . Speed distributions of CMEs in cycle 23 at low and high latitudes[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2008,8(2):146-152.
APA Gao PX,Li KJ,&Gao, PX .(2008).Speed distributions of CMEs in cycle 23 at low and high latitudes.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,8(2),146-152.
MLA Gao PX,et al."Speed distributions of CMEs in cycle 23 at low and high latitudes".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 8.2(2008):146-152.
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