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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; Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2015-10
卷号15期号:10页码:1725-1734
DOI10.1088/1674-4527/15/10/009
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Filaments Sun: Corona Prominences
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.
项目资助者National Natural Science Foundation of China (NSFC) [11373066, 11373065, 11203077] ; Yunnan Science Foundation of China [2013FB086] ; Talent Project of Western Light of Chinese Academy of Sciences ; National Basic Research Program of China (973 program) [G2011CB811400] ; Key Laboratory of Solar Activity of CAS [KLSA 201303, KLSA 201412, KLSA 201407]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1674-4527
URL查看原文
归档日期2015-09-15
WOS记录号WOS:000362825700009
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MAGNETIC-STRUCTURE ; SPECKLE MASKING ; PROMINENCE ; DYNAMICS ; THREADS ; OSCILLATIONS ; HINODE/SOT ; ERUPTION
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被引频次:9[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/114a53/4712
专题抚仙湖太阳观测站
通讯作者Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
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
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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,&Yan, XL .(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.
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