Evolution of coronal mass ejections in the early stage

	Evolution of coronal mass ejections in the early stage
	Bao, XM 1; Zhang, HQ 1; Lin J(林隽)2,3 ; Jiang YC(姜云春)2 ; Li LP(李乐平)2
刊名	ADVANCES IN SPACE RESEARCH
	2007
卷号	39 期号:12 页码:1847-1852
关键词	coronal mass ejections flare filament eruption
ISSN号	0273-1177
通讯作者	Bao, XM (reprint author), Chinese Acad Sci, Natl Astron Observ China, A20 Datun Rd,Chaoyang Dist, Beijing 100012, Peoples R China.
产权排序	第二完成单位
英文摘要	This 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.
学科主题	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
研究领域[WOS]	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
关键词[WOS]	FILAMENT ERUPTIONS ; FLARES ; RECONNECTION
收录类别	SCI ; EI
原文出处	http://www.sciencedirect.com/science/article/pii/S0273117707001457
语种	英语
WOS记录号	WOS:000253588900008
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6110]
专题	云南天文台_太阳物理研究组
作者单位	1.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
推荐引用方式 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.(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.