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AN OVER-AND-OUT HALO CORONAL MASS EJECTION DRIVEN BY THE FULL ERUPTION OF A KINKED FILAMENT
Yang JY(杨家艳)1,2; Jiang YC(姜云春)1; Bi Y(毕以)1; Li HD(李海东)1; Hong JC(洪俊超)1,3; Yang D(杨丹)1,3; Zheng RS(郑瑞生)1,3; Yang B(杨波)1,3; Yang, JY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2012-04-10
Volume749Issue:1
DOI10.1088/0004-637X/749/1/12
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordSun: Activity Sun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Filaments Sun: Magnetic Topology Prominences
AbstractOver-and-out coronal mass ejections (CMEs) represent a broad class of CMEs that come from flare-producing magnetic explosions of various sizes but are laterally far offset from the flare, and their productions can be depicted by the magnetic-arch-blowout scenario. In this paper, we present observations of an over-and-out halo CME from the full eruption of a small kinking filament in an emerging active region (AR). In combination with the results of a derived coronal magnetic configuration, our observations showed that the CME was associated with a coronal helmet streamer, and the filament was located in the northern outskirts of the streamer base. Formed along a neutral line where flux cancellation was forced by the emerging AR with the surrounding opposite-polarity magnetic field, the filament underwent a full, non-radial eruption along the northern leg of the streamer arcade, accompanied by a clockwise deflection of the eruption direction. As a characteristic property of kink instability, the eruption displayed a clear inverse gamma shape, indicative of a writhing motion of the filament apex. Coronal dimmings, including a remote one, formed in opposite-polarity footprint regions of the streamer arcade during the eruption, and the consequent CME was laterally offset from the AR. These observations suggest that the kink instability is likely to be the driver in the eruption. The event can be well explained by putting this driver into the magnetic-arch-blowout model, in which the eruption-direction deflection and the full-eruption nature of the kinking filament are caused by the guiding action of the streamer arcade and the external reconnection between them.
Funding OrganizationNational Science Foundation ; 973 Program [2011CB811403] ; Natural Science Foundation of China [10973038, 11173058]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
Archive Date2012-03-23
WOS IDWOS:000302175500012
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE-REGION FILAMENT ; FLUX ROPES ; MAGNETIC CLOUDS ; NONRADIAL ERUPTION ; HELMET STREAMER ; PROMINENCE ; FIELD ; INSTABILITY ; KINKING ; FLARES
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6205
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, JY (reprint author), Chinese Acad Sci, Natl Astron Observ, 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,Bi Y,et al. AN OVER-AND-OUT HALO CORONAL MASS EJECTION DRIVEN BY THE FULL ERUPTION OF A KINKED FILAMENT[J]. ASTROPHYSICAL JOURNAL,2012,749(1).
APA Yang JY.,Jiang YC.,Bi Y.,Li HD.,Hong JC.,...&Yang, JY .(2012).AN OVER-AND-OUT HALO CORONAL MASS EJECTION DRIVEN BY THE FULL ERUPTION OF A KINKED FILAMENT.ASTROPHYSICAL JOURNAL,749(1).
MLA Yang JY,et al."AN OVER-AND-OUT HALO CORONAL MASS EJECTION DRIVEN BY THE FULL ERUPTION OF A KINKED FILAMENT".ASTROPHYSICAL JOURNAL 749.1(2012).
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