A flare-triggered heating of a quiescent filament

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳活动的多波段观测研究团组

	A flare-triggered heating of a quiescent filament
	Ji, HS; Wang, H ; Spirock, TJ ; Qiu, J ; Yang, G ; Goode, PR
刊名	SOLAR PHYSICS
	2002-12-01
卷号	211 期号:1-2 页码:221-229
关键词	ALFVEN WAVES RESONANT ABSORPTION RIGID ROTATION DISAPPEARANCES
ISSN号	0038-0938
英文摘要	Using data obtained with the 20-cm Ha full-disk telescope at Big Bear Solar Observatory and Fe XII Angstrom 195 & FIT on SOHO, we analyze a sudden disappearance event of a quiescent filament in detail. The filament was located along the common boundary of the active regions NOAA 9672 (S19 E13) and NOAA 9673 (N03 E18). The filament disappeared during a time interval between 17:59 UT and 19:47 UT on 22 October 2001 immediately after the onset of a major flare, which occurred in the active region NOAA 9672. At about 23:23 UT of the same day, the filament began to reappear in Ha and, after about 15 hours, the filament recovered to its steady state with its size being slightly smaller than that before its disappearance. This filament disappearance event belongs to the thermal type of sudden filament disappearances, which is caused by an input of additional heat. The heating mechanism that leads to sudden thermal disappearances of quiescent filaments is still not well understood. This simple event, due to the explicit cause and effect relationship between the flare and the disappearance of the filament, shows us that the flare triggered some kind of heating mechanism which continued several hours. The heat may come from the flare via heat conduction from its ribbon or from the excitation of dissipating Alfven waves. However, from the data analysis, we conclude that the flare triggered an in-situ heating, which is likely caused by magnetic reconnection.
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]	ALFVEN WAVES ; RESONANT ABSORPTION ; RIGID ROTATION ; DISAPPEARANCES
收录类别	SCI
语种	英语
WOS记录号	WOS:000181071700015
公开日期	2013-01-29
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/7900]
专题	紫金山天文台_太阳活动的多波段观测研究团组
作者单位	1.New Jersey Inst Technol, Big Bear Solar Observ, Big Bear City, CA 92314 USA 2.Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Ji, HS,Wang, H,Spirock, TJ,et al. A flare-triggered heating of a quiescent filament[J]. SOLAR PHYSICS,2002,211(1-2):221-229.
APA	Ji, HS,Wang, H,Spirock, TJ,Qiu, J,Yang, G,&Goode, PR.(2002).A flare-triggered heating of a quiescent filament.SOLAR PHYSICS,211(1-2),221-229.
MLA	Ji, HS,et al."A flare-triggered heating of a quiescent filament".SOLAR PHYSICS 211.1-2(2002):221-229.