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SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION
Bi Y(毕以)1,3; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Hong JC(洪俊超)1,2; Li HD(李海东)1; Yang D(杨丹)1,2; Yang B(杨波)1,2; Bi, Y (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2014-08-01
卷号790期号:2
DOI10.1088/0004-637X/790/2/100
产权排序第1完成单位
收录类别SCI
关键词Sun: Coronal Mass Ejections (Cmes) Sun: Oscillations Sun: Filaments Prominences
摘要Both large-amplitude longitudinal (LAL) oscillations and material drainage in a solar filament are associated with the flow of material along the filament axis, often followed by an eruption. However, the relationship between these two motions and a subsequent eruption event is poorly understood. We analyze a filament eruption using EUV imaging data captured by the Atmospheric Imaging Array on board the Solar Dynamics Observatory and the Ha images from the Global Oscillation Network Group. Hours before the eruption, the filament was activated, with one of its legs undergoing a slow rising motion. The asymmetric activation inclined the filament relative to the solar surface. After the active phase, LAL oscillations were observed in the inclined filament. The oscillation period increased slightly over time, which may suggest that the magnetic fields supporting the filament evolve to be flatter during the slow rising phase. After the oscillations, a significant amount of filament material was drained toward one filament endpoint, followed immediately by the violent eruption of the filament. The material drainage may further support the change in magnetic topology prior to the eruption. Moreover, we suggest that the filament material drainage could play a role in the transition from a slow to a fast rise of the erupting filament.
项目资助者973 Program [2011CB811403] ; Natural Science Foundation of China [11173058, 11273056] ; CAS [KJCX2-EW-T07] ; Open Research Programs of CAS
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2014-07-17
WOS记录号WOS:000339115800017
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; AMPLITUDE LONGITUDINAL OSCILLATIONS ; ABSORPTION FEATURES ; PERIODIC MOTION ; MAGNETIC-FIELD ; MORETON WAVE ; FLUX ROPES ; PROMINENCE ; FLARE ; ENERGY
引用统计
被引频次:20[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/114a53/6245
专题太阳物理研究组
通讯作者Bi, Y (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式
GB/T 7714
Bi Y,Jiang YC,Yang JY,et al. SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION[J]. ASTROPHYSICAL JOURNAL,2014,790(2).
APA Bi Y.,Jiang YC.,Yang JY.,Hong JC.,Li HD.,...&Bi, Y .(2014).SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION.ASTROPHYSICAL JOURNAL,790(2).
MLA Bi Y,et al."SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION".ASTROPHYSICAL JOURNAL 790.2(2014).
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