Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope

	Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope
	Yan XL(闫晓理)1,2 ; Xue ZK(薛志科)1 ; Xiang YY(向永源)1 ; Yang LH(杨丽恒)1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-10
卷号	15 期号:10 页码:1725-1734
关键词	Sun: filaments, prominences Sun: activity Sun: corona
ISSN号	1674-4527
通讯作者	Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Study of the small-scale structures and material flows associated with solar quiescent filaments is very important for understanding the formation and equilibrium of solar filaments. Using high resolution H alpha data observed by the New Vacuum Solar Telescope, we present the structures of barbs and material flows along the threads across the spine in two quiescent filaments on 2013 September 29 and on 2012 November 2, respectively. During the evolution of the filament barb, several parallel tube-shaped structures formed and the width of the structures ranged from about 2.3 Mm to 3.3Mm. The parallel tube-shaped structures merged together accompanied by material flows from the spine to the barb. Moreover, the boundary between the barb and surrounding atmosphere was very neat. The counter-streaming flows were not found to appear alternately in the adjacent threads of the filament. However, the large-scale patchy counter-streaming flows were detected in the filament. The flows in one patch of the filament have the same direction but flows in the adjacent patch have opposite direction. The patches of two opposite flows with a size of about 10'' were alternately exhibited along the spine of the filament. The velocity of these material flows ranged from 5.6 km s(-1) to 15.0 km s(-1). The material flows along the threads of the filament did not change their direction for about two hours and fourteen minutes during the evolution of the filament. Our results confirm that the large-scale counter-streaming flows with a certain width along the threads of solar filaments exist and are coaligned well with the threads.
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]	MAGNETIC-STRUCTURE ; SPECKLE MASKING ; PROMINENCE ; DYNAMICS ; THREADS ; OSCILLATIONS ; HINODE/SOT ; ERUPTION
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/1674-4527/15/10/009/meta
语种	英语
WOS记录号	WOS:000362825700009
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4712]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式 GB/T 7714	Yan XL,Xue ZK,Xiang YY,et al. Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(10):1725-1734.
APA	Yan XL,Xue ZK,Xiang YY,&Yang LH.(2015).Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(10),1725-1734.
MLA	Yan XL,et al."Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.10(2015):1725-1734.