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ERUPTION OF A SOLAR FILAMENT CONSISTING OF TWO THREADS
Bi Y(毕以); Jiang YC(姜云春); Li HD(李海东); Hong JC(洪俊超); Zheng RS(郑瑞生); Bi, Y (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2012-10-10
卷号758期号:1页码:42-47
DOI10.1088/0004-637X/758/1/42
产权排序第1完成单位
收录类别SCI
关键词Sun: Magnetic Topology Sun: Filaments Prominences
摘要The trigger and driving mechanism for the eruption of a filament consisting of two dark threads was studied with unprecedented high cadence and resolution of He II 304 angstrom observations made by the Atmospheric Imagining Assembly (AIA) on board the Solar Dynamics Observatory (SDO) and the observations made by the Solar Magnetic Activity Research Telescope and the Extreme Ultraviolet Imager (EUVI) telescope on board the Solar Terrestrial Relations Observatory Ahead (STEREO-A). The filament was located at the periphery of the active region NOAA 11228 and erupted on 2011 June 6. At the onset of the eruption, a turbulent filament thread was found to be heated and to elongate in stride over a second one. After it rose slowly, most interestingly, the elongating thread was driven to contact and interact with the second one, and it then erupted with its southern leg being wrapped by a newly formed thread produced by the magnetic reconnection between fields carried by the two threads. Combining the observations from STEREO-A/EUVI and SDO/AIA 304 angstrom images, the three-dimensional shape of the axis of the filament was obtained and it was found that only the southern leg of the eruptive filament underwent rotation. We suggest that the eruption was triggered by the reconnection of the turbulent filament thread and the surrounding magnetic field, and that it was mainly driven by the kink instability of the southern leg of the eruptive filament that possessed a more twisted field introduced by the reconnection-produced thread.
项目资助者973 Program [2011CB811403] ; Natural Science Foundation of China [10973038, 11173058]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2012-11-07
WOS记录号WOS:000309520500042
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; MAGNETIC-FLUX ; ROPES ; RECONNECTION ; PROMINENCES ; CATASTROPHE ; HELICITY ; SIGMOIDS ; KINKING ; FIELD
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6190
专题太阳物理研究组
通讯作者Bi, Y (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
作者单位National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
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GB/T 7714
Bi Y,Jiang YC,Li HD,et al. ERUPTION OF A SOLAR FILAMENT CONSISTING OF TWO THREADS[J]. ASTROPHYSICAL JOURNAL,2012,758(1):42-47.
APA Bi Y,Jiang YC,Li HD,Hong JC,Zheng RS,&Bi, Y .(2012).ERUPTION OF A SOLAR FILAMENT CONSISTING OF TWO THREADS.ASTROPHYSICAL JOURNAL,758(1),42-47.
MLA Bi Y,et al."ERUPTION OF A SOLAR FILAMENT CONSISTING OF TWO THREADS".ASTROPHYSICAL JOURNAL 758.1(2012):42-47.
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