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Evolution of coronal mass ejections in the early stage
Bao, XM1; Zhang, HQ1; Lin J(林隽)2,3; Jiang YC(姜云春)2; Li LP(李乐平)2; Bao, XM (reprint author), Chinese Acad Sci, Natl Astron Observ China, A20 Datun Rd,Chaoyang Dist, Beijing 100012, Peoples R China.
Source PublicationADVANCES IN SPACE RESEARCH
2007
Volume39Issue:12Pages:1847-1852
DOI10.1016/j.asr.2007.02.055
Contribution Rank第2完成单位
Indexed BySCI ; EI
KeywordCoronal Mass Ejections Flare Filament Eruption
AbstractThis work reports the investigation of two coronal mass ejections (CME) observed in white light, H alpha, EUV and X-ray by various instruments both in space and on ground on February 18, 2003 and January 19, 2005, respectively. The white light coronal images show that the first CME began with the rarefaction of a region above the solar limb and was followed by the formation of its leading edge at the boundary of the rarefying region at altitude of 0.46 R-circle dot from the solar surface. The rarefaction coincided the slow rising phase of the filament eruption, and the CME leading edge was observed to form as the filament eruption started to accelerate apparently. In the early stage of the second CME, a bright loop was first observed above the solar limb with height of 0.37 R-circle dot in EUV images. We found that the more gradual CMEs initial process, the larger the timing difference between CMEs and their associated flares. The lower part of the filament brightened in H alpha images as the filament rose to a certain height. These brightenings imply that the filament may be heated by magnetic reconnection below the filament in the early stage of the eruption. We suggest that the possible mechanism which led to the formation of the CME leading edge and cavity is magnetic reconnection which occurred under the filament when it reached a certain height. (c) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved.
Language英语
Subject AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
SubtypeArticle
ISSN0273-1177
URL查看原文
WOS IDWOS:000253588900008
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS KeywordFILAMENT ERUPTIONS ; FLARES ; RECONNECTION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6110
Collection太阳物理研究组
Corresponding AuthorBao, XM (reprint author), Chinese Acad Sci, Natl Astron Observ China, A20 Datun Rd,Chaoyang Dist, Beijing 100012, Peoples R China.
Affiliation1.National Astronomical Observatories of China, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing 100012, China
2.Yunnan Astronomical Observatory, NAOC, CAS, P.O. Box 110, Kunming, Yunnan 650011, China
3.Harvard–Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Recommended Citation
GB/T 7714
Bao, XM,Zhang, HQ,Lin J,et al. Evolution of coronal mass ejections in the early stage[J]. ADVANCES IN SPACE RESEARCH,2007,39(12):1847-1852.
APA Bao, XM,Zhang, HQ,Lin J,Jiang YC,Li LP,&Bao, XM .(2007).Evolution of coronal mass ejections in the early stage.ADVANCES IN SPACE RESEARCH,39(12),1847-1852.
MLA Bao, XM,et al."Evolution of coronal mass ejections in the early stage".ADVANCES IN SPACE RESEARCH 39.12(2007):1847-1852.
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