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The Asymmetrical Eruption of a Quiescent Filament and Associated Halo CME
Yang JY(杨家艳)1,2; Jiang YC(姜云春)1; Yang B(杨波)1,3; Zheng RS(郑瑞生)1,3; Yang D(杨丹)1,3; Hong JC(洪俊超)1,3; Li HD(李海东)1; Bi Y(毕以)1; Yang, J (reprint author), Chinese Acad Sci, Natl Astron Observat, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊SOLAR PHYSICS
2012-07
卷号279期号:1页码:115-126
DOI10.1007/s11207-012-0002-0
产权排序第1完成单位
收录类别SCI
关键词Corona Activity Coronal Mass Ejections Low Coronal Signatures Magnetic Fields Corona Prominences Activity
摘要We will present detailed observations of the asymmetrical eruption of a large quiescent filament on 24 November 2002, which was followed by a two-ribbon flare, three coronal dimmings, endpoint brightenings, and a very fast halo-type coronal mass ejection (CME). Before the eruption, the filament lay along the main neutral line (MNL) underneath a single-arcade helmet streamer with a simple bipolar configuration. However, photospheric magnetic fields on both sides of the filament showed an asymmetrical distribution, and the filament and MNL were not located just at the center of the streamer base but were closer to the eastern leg of the streamer arcade. Therefore, instead of erupting along the streamer's symmetrical axis, the filament showed a nonradial and asymmetrical eruption. It lifted from the eastern flank of the streamer arcade to impact the western leg directly, leading to an asymmetrical CME that expanded westward; eventually the streamer was disrupted significantly. Accordingly, the opposite-polarity coronal dimmings at both sides of the filament forming in the eruption also showed an asymmetrical area distribution. We thus assume that the streamer arcade could guide the filament at the early eruption phase but failed to restrain it later. Consistent with previous results, these observations suggest that the global background magnetic field can impose additional action on the initial eruption of the filament and CME, as well as the dimming configuration.
项目资助者National Science Foundation ; 973 Program [2011CB811403] ; Natural Science Foundation of China [10973038, 11173058]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
URL查看原文
归档日期2012-06-11
WOS记录号WOS:000305130700007
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; H-ALPHA ; PROMINENCE ERUPTIONS ; MAGNETIC-FIELDS ; SOLAR-ACTIVITY ; SOURCE REGIONS ; FLARES ; STREAMER ; CONFIGURATION ; TRANSIENTS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6202
专题太阳物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Yang, J (reprint author), Chinese Acad Sci, Natl Astron Observat, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China
3.Graduate School of Chinese Academy of Sciences, Beijing, 100049, China
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GB/T 7714
Yang JY,Jiang YC,Yang B,et al. The Asymmetrical Eruption of a Quiescent Filament and Associated Halo CME[J]. SOLAR PHYSICS,2012,279(1):115-126.
APA Yang JY.,Jiang YC.,Yang B.,Zheng RS.,Yang D.,...&Yang, J .(2012).The Asymmetrical Eruption of a Quiescent Filament and Associated Halo CME.SOLAR PHYSICS,279(1),115-126.
MLA Yang JY,et al."The Asymmetrical Eruption of a Quiescent Filament and Associated Halo CME".SOLAR PHYSICS 279.1(2012):115-126.
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