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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.
发表期刊ASTROPHYSICAL JOURNAL
2012-04-10
卷号749期号:1
DOI10.1088/0004-637X/749/1/12
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun: Activity Sun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Filaments Sun: Magnetic Topology Prominences
摘要Over-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.
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
ISSN0004-637X
URL查看原文
归档日期2012-03-23
WOS记录号WOS:000302175500012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE-REGION FILAMENT ; FLUX ROPES ; MAGNETIC CLOUDS ; NONRADIAL ERUPTION ; HELMET STREAMER ; PROMINENCE ; FIELD ; INSTABILITY ; KINKING ; FLARES
引用统计
被引频次:11[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/114a53/6205
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, JY (reprint author), Chinese Acad Sci, Natl Astron Observ, 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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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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