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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.
Source PublicationSOLAR PHYSICS
2012-07
Volume279Issue:1Pages:115-126
DOI10.1007/s11207-012-0002-0
Contribution Rank第1完成单位
Indexed BySCI
KeywordCorona Activity Coronal Mass Ejections Low Coronal Signatures Magnetic Fields Corona Prominences Activity
AbstractWe 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.
Funding OrganizationNational Science Foundation ; 973 Program [2011CB811403] ; Natural Science Foundation of China [10973038, 11173058]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0038-0938
URL查看原文
Archive Date2012-06-11
WOS IDWOS:000305130700007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; H-ALPHA ; PROMINENCE ERUPTIONS ; MAGNETIC-FIELDS ; SOLAR-ACTIVITY ; SOURCE REGIONS ; FLARES ; STREAMER ; CONFIGURATION ; TRANSIENTS
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6202
Collection太阳物理研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorYang, J (reprint author), Chinese Acad Sci, Natl Astron Observat, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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