Coronal and chromospheric dimmings during a halo-type CME event

	Coronal and chromospheric dimmings during a halo-type CME event
	Jiang YC(姜云春); Yang LH(杨丽恒); Li KJ(李可军); Ren DB(任冬柏)
刊名	ASTROPHYSICAL JOURNAL
	2007-06-20
卷号	662 期号:2 页码:L131-L134
关键词	Sun : activity Sun : coronal mass ejections (CMEs) Sun : filaments Sun : flares Sun : magnetic fields Sun : UV radiation
ISSN号	0004-637X
通讯作者	Jiang, YC (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	We present complementary solar observations of a filament eruption occurring in association with a halo-type coronal mass ejection ( CME) on 2006 July 6 in AR 10898. This eruption was followed by an M2.5 flare and has led to the formation of a pair of dimmings, observed in H alpha, over network patterns in regions of opposite magnetic polarities located near the ends of the eruptive filament. These dimmings, also clearly visible in He I 10830 angstrom, EUV, and soft X-rays, were preceded by distinct H alpha and EUV brightenings that first mark the dimming sites during the rise phase of the flare and then form bright edges, observable in EUV, around the growing dim regions. These dimmings have been attributed to a magnetic flux rope that is considered the origin of the CME as proposed in recent theories. The brightenings reported here are a new aspect of the CME hydromagnetic process that has not been included in existing theories. The roles and implications of the network patterns, brightenings, and sharp edges in the dimming evolutions are discussed.
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]	MASS EJECTION ; FLARE ; IMAGER ; ERUPTION
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-4357/662/2/L131/
语种	英语
WOS记录号	WOS:000247248800021
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6104]
专题	云南天文台_太阳物理研究组
作者单位	National Astronomical Observatory/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
推荐引用方式 GB/T 7714	Jiang YC,Yang LH,Li KJ,et al. Coronal and chromospheric dimmings during a halo-type CME event[J]. ASTROPHYSICAL JOURNAL,2007,662(2):L131-L134.
APA	Jiang YC,Yang LH,Li KJ,&Ren DB.(2007).Coronal and chromospheric dimmings during a halo-type CME event.ASTROPHYSICAL JOURNAL,662(2),L131-L134.
MLA	Jiang YC,et al."Coronal and chromospheric dimmings during a halo-type CME event".ASTROPHYSICAL JOURNAL 662.2(2007):L131-L134.