H alpha dimming associated with the eruption of a coronal sigmoid in the quiet sun

doi:10.1007/s11207-006-0257-4

YNAO OpenIR > 太阳物理研究组

	H alpha dimming associated with the eruption of a coronal sigmoid in the quiet sun
	Jiang YC(姜云春); Chen HD(陈华东); Shen YD(申远灯); Yang LH(杨丽恒); Li KJ(李可军); Jiang, YC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	SOLAR PHYSICS
	2007-01
卷号	240 期号:1 页码:77-87
DOI	10.1007/s11207-006-0257-4
产权排序	第1完成单位
收录类别	SCI
摘要	We report on the occurrence of H alpha dimming associated with a sigmoid eruption in a quiet-sun region on 14 August 2001. The coronal sigmoid in soft X-ray images from the Yohkoh Soft X-ray Telescope was located over an H alpha filament channel. Its eruption was accompanied by a flare of GOES X-ray class C2.3 and possibly associated with a halo coronal mass ejection (CME) observed with the Large Angle and Spectroscopic Coronagraphs (LASCO) on board the Solar and Heliospheric Observatory (SOHO). During the eruption, coronal bipolar double dimming took place at the regions with opposite magnetic polarities around the two sigmoid ends, but the underlying chromospheric channel did not show observable changes corresponding to the coronal eruption. Different from the erupting coronal sigmoid itself, however, the coronal dimming had a detectable chromosphere counterpart, i.e., H alpha dimming. By regarding the sigmoid as a coronal sign for a flux rope, these observations are explained in the framework of the flux rope model of CMEs. The flux rope is possibly deeply rooted in the chromosphere, and the coronal and H alpha dimming regions mark its evacuated feet, through which the material is possibly fed to the halo CME.
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	2007-05-28
WOS记录号	WOS:000244954600009
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	MASS EJECTION ; FILAMENT ERUPTION ; SOLAR-FLARE ; TELESCOPE ; MISSION ; CME
引用统计	被引频次：8[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/114a53/6115
专题	太阳物理研究组
通讯作者	Jiang, YC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
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,Chen HD,Shen YD,et al. H alpha dimming associated with the eruption of a coronal sigmoid in the quiet sun[J]. SOLAR PHYSICS,2007,240(1):77-87.
APA	Jiang YC,Chen HD,Shen YD,Yang LH,Li KJ,&Jiang, YC .(2007).H alpha dimming associated with the eruption of a coronal sigmoid in the quiet sun.SOLAR PHYSICS,240(1),77-87.
MLA	Jiang YC,et al."H alpha dimming associated with the eruption of a coronal sigmoid in the quiet sun".SOLAR PHYSICS 240.1(2007):77-87.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Hα Dimming Associate（622KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文