Quadrupolar Dimmings During a Partial Halo Coronal Mass Ejection Event

doi:10.1007/s11207-011-9762-1

YNAO OpenIR > 太阳物理研究组

	Quadrupolar Dimmings During a Partial Halo Coronal Mass Ejection Event
	Yang JY(杨家艳)1 ; Jiang YC(姜云春)1 ; Zheng RS(郑瑞生)1,2 ; Hong JC(洪俊超)1,2 ; Bi Y(毕以)1,2 ; Yang LH(杨丽恒)1,2 ; Jiang, Y (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	SOLAR PHYSICS
	2011-06
卷号	270 期号:2 页码:551-559
DOI	10.1007/s11207-011-9762-1
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 present detailed observations of the formations of four distinct coronal dimmings during a flare of 17 September 2002, which was followed by an eruption of a huge coronal loop system, and then an over-and-out partial halo coronal mass ejection (CME), with the same direction as the loop system eruption but laterally far offset from the flare site. Among the four dimmings, two compact ones were symmetrically located in the opposite polarity regions immediately adjacent to the highly sheared magnetic polarity inversion line in the flare region, and hence were probably composed of bipolar double dimmings due to a flux-rope eruption and represented its evacuated footpoints. However, another nearby compact dimming and a remote diffuse one were formed in the opposite polarity footpoint regions of the eruptive loop system, and thus probably consisted of a pair of dimmings magnetically linked by the erupting loop system and also indicated its evacuated footpoints. The loop system might have played a role in guiding the erupting flare field and producing the over-and-out CME, but its eruption might simply have been pushed out by the erupting flare field, because there was no reconnection signature between them. From comparison with a derived potential-field source-surface (PFSS) magnetic configuration, our observations consistently suggest that the dimmings were formed in pairs and originated from the eruptions of the two different magnetic systems. We thus define them as "quadrupolar dimmings."
项目资助者	973 Program [2011CB811400] ; Natural Science Foundation of China [10973038, 40636031] ; Scientific Application Foundation of Yunnan Province [2007A112M, 2007A115M]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0038-0938
URL	查看原文
归档日期	2011-07-12
WOS记录号	WOS:000293142700010
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	MAGNETIC CLOUD ; REGION ; FLARE ; EIT
引用统计	被引频次：12[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/114a53/6179
专题	太阳物理研究组
通讯作者	Jiang, Y (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.Graduate School of Chinese Academy of Sciences, Beijing, 100049, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Yang JY,Jiang YC,Zheng RS,et al. Quadrupolar Dimmings During a Partial Halo Coronal Mass Ejection Event[J]. SOLAR PHYSICS,2011,270(2):551-559.
APA	Yang JY.,Jiang YC.,Zheng RS.,Hong JC.,Bi Y.,...&Jiang, Y .(2011).Quadrupolar Dimmings During a Partial Halo Coronal Mass Ejection Event.SOLAR PHYSICS,270(2),551-559.
MLA	Yang JY,et al."Quadrupolar Dimmings During a Partial Halo Coronal Mass Ejection Event".SOLAR PHYSICS 270.2(2011):551-559.

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