AN OVER-AND-OUT HALO CORONAL MASS EJECTION DRIVEN BY THE FULL ERUPTION OF A KINKED FILAMENT

	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
刊名	ASTROPHYSICAL JOURNAL
	2012-04-10
卷号	749 期号:1
关键词	Sun: activity Sun: coronal mass ejections (CMEs) Sun: filaments Sun: flares Sun: magnetic topology prominences
ISSN号	0004-637X
通讯作者	Yang, JY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ACTIVE-REGION FILAMENT ; FLUX ROPES ; MAGNETIC CLOUDS ; NONRADIAL ERUPTION ; HELMET STREAMER ; PROMINENCE ; FIELD ; INSTABILITY ; KINKING ; FLARES
收录类别	SCI ; EI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/749/1/12/meta
语种	英语
WOS记录号	WOS:000302175500012
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6205]
专题	云南天文台_太阳物理研究组云南天文台_中国科学院天体结构与演化重点实验室
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
推荐引用方式 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 B.(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).