STATISTICAL STUDY OF CORONAL MASS EJECTIONS WITH AND WITHOUT DISTINCT LOW CORONAL SIGNATURES

doi:10.1088/0004-637X/722/1/289

YNAO OpenIR > 太阳物理研究组

	STATISTICAL STUDY OF CORONAL MASS EJECTIONS WITH AND WITHOUT DISTINCT LOW CORONAL SIGNATURES
	Ma SL(马素丽)1,2,3 ; Attrill, GDR 1; Golub, L 1; Lin J(林隽)2 ; Ma, S (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
发表期刊	ASTROPHYSICAL JOURNAL
	2010-10-10
卷号	722 期号:1 页码:289-301
DOI	10.1088/0004-637X/722/1/289
产权排序	第2完成单位
收录类别	SCI
关键词	Sun: Activity Sun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Uv Radiation
摘要	Taking advantage of the two viewpoints of the STEREO spacecraft, we present a statistical study of coronal mass ejections (CMEs) with and without distinct low coronal signatures (LCSs) from 2009 January 1 to August 31. During this period, the lines of sight from STEREO A and B are almost perpendicular and nearly a quarter of the Sun was observed by both. We identified 34 CMEs that originated from around this area and find that (1) about 1 out of 3 CMEs that were studied during 8 months of solar minimum activity are stealth CMEs; a CME is stealth if no distinct LCS (such as coronal dimming, coronal wave, filament eruption, flare, post-eruptive arcade) can be found on the disk. (2) The speeds of the stealth CMEs without LCSs are typically below 300 km s(-1). Comparing with the slow CMEs with LCSs, the stealth CMEs did not show any clear differences in their velocity and acceleration evolution. (3) The source regions of the stealth CMEs are usually located in the quiet Sun rather than active regions. Detailed study indicates that more than half of the stealth CMEs in this paper showed some faint change of the coronal structures (likely parts of flux ropes) when they could be observed over the solar limb before or during the CME evolution. Finally, we note that space weather detection systems based on LCSs totally independent of coronagraph data may fail to detect a significant proportion of CMEs.
项目资助者	NASA [SP02H1701R, NNM07AB07C, NNX09AB11G] ; Program 973 [2006CB806303] ; NSFC [10873030, 40636031] ; CAS [KJCX2-YW-T04] ; Smithsonian Institution Restricted Endowment Funds ; [SAO-610089-4210-40610089HH0022]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:000282908900026
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	STEREO ; ORIGIN ; CMES ; SUN ; EVOLUTION ; FLARES ; WAVES ; LASCO
引用统计	被引频次：79[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/114a53/6159
专题	太阳物理研究组
通讯作者	Ma, S (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
作者单位	1.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 2.National Astronomical Observatories of China/Yunnan Astronomical Observatory, Chinese Academy of Sciences (CAS), Kunming, Yunnan 650011, China 3.Graduate School of CAS, 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	Ma SL,Attrill, GDR,Golub, L,et al. STATISTICAL STUDY OF CORONAL MASS EJECTIONS WITH AND WITHOUT DISTINCT LOW CORONAL SIGNATURES[J]. ASTROPHYSICAL JOURNAL,2010,722(1):289-301.
APA	Ma SL,Attrill, GDR,Golub, L,Lin J,&Ma, S .(2010).STATISTICAL STUDY OF CORONAL MASS EJECTIONS WITH AND WITHOUT DISTINCT LOW CORONAL SIGNATURES.ASTROPHYSICAL JOURNAL,722(1),289-301.
MLA	Ma SL,et al."STATISTICAL STUDY OF CORONAL MASS EJECTIONS WITH AND WITHOUT DISTINCT LOW CORONAL SIGNATURES".ASTROPHYSICAL JOURNAL 722.1(2010):289-301.

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