NEW VACUUM SOLAR TELESCOPE OBSERVATIONS OF A FLUX ROPE TRACKED BY A FILAMENT ACTIVATION

	NEW VACUUM SOLAR TELESCOPE OBSERVATIONS OF A FLUX ROPE TRACKED BY A FILAMENT ACTIVATION
	Yang, SH 1; Zhang, J1 ; Liu Z(刘忠)2 ; Xiang YY(向永源)2
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2014-04-01
卷号	784 期号:2
关键词	Sun: atmosphere Sun: evolution Sun: filaments, prominences Sun: magnetic fields
ISSN号	2041-8205
通讯作者	Yang, SH (reprint author), Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China.
产权排序	第二完成单位
英文摘要	One main goal of the New Vacuum Solar Telescope (NVST) which is located at the Fuxian Solar Observatory is to image the Sun at high resolution. Based on the high spatial and temporal resolution NVST Ha data and combined with the simultaneous observations from the Solar Dynamics Observatory for the first time, we investigate a flux rope tracked by filament activation. The filament material is initially located at one end of the flux rope and fills in a section of the rope; the filament is then activated by magnetic field cancellation. The activated filament rises and flows along helical threads, tracking the twisted flux rope structure. The length of the flux rope is about 75 Mm, the average width of its individual threads is 1.11 Mm, and the estimated twist is 1 pi. The flux rope appears as a dark structure in Ha images, a partial dark and partial bright structure in 304 angstrom, and as a bright structure in 171 angstrom and 131 angstrom images. During this process, the overlying coronal loops are quite steady since the filament is confined within the flux rope and does not erupt successfully. It seems that, for the event in this study, the filament is located and confined within the flux rope threads, instead of being suspended in the dips of twisted magnetic flux.
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]	CORONAL MASS EJECTIONS ; ACTIVE-REGION ; MAGNETIC-STRUCTURE ; ERUPTION ; SIMULATIONS ; EMERGENCE ; HINODE ; SDO ; RECONNECTION ; PROMINENCES
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/2041-8205/784/2/L36/meta
语种	英语
WOS记录号	WOS:000333333400019
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4708]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2.Fuxian Solar Observatory, Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式 GB/T 7714	Yang, SH,Zhang, J,Liu Z,et al. NEW VACUUM SOLAR TELESCOPE OBSERVATIONS OF A FLUX ROPE TRACKED BY A FILAMENT ACTIVATION[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,784(2).
APA	Yang, SH,Zhang, J,Liu Z,&Xiang YY.(2014).NEW VACUUM SOLAR TELESCOPE OBSERVATIONS OF A FLUX ROPE TRACKED BY A FILAMENT ACTIVATION.ASTROPHYSICAL JOURNAL LETTERS,784(2).
MLA	Yang, SH,et al."NEW VACUUM SOLAR TELESCOPE OBSERVATIONS OF A FLUX ROPE TRACKED BY A FILAMENT ACTIVATION".ASTROPHYSICAL JOURNAL LETTERS 784.2(2014).