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Case study of a complex active-region filament eruption
Yan XL(闫晓理)1,2; Qu ZQ(屈中权)1; Kong DF(孔德芳)1,3; Deng LH(邓林华)1,3; Xue ZK(薛志科)1,3; Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊ASTRONOMY & ASTROPHYSICS
2013-09
卷号557页码:108-117
DOI10.1051/0004-6361/201219032
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun: Activity Sun: Flares Sun: Filaments Sun: Coronal Mass Ejections (Cmes) Prominences Sun: Surface Magnetism
摘要Context. We investigated a solar active-region filament eruption associated with a C6.6 class flare and a coronal mass ejection (CME) in NOAA active region 08858 on 2000 February 9. Aims. We aim to better understand the relationship between filament eruptions and the associated flares and CMEs. Methods. Using BBSO, SOHO/EIT, and TRACE observational data, we analyzed the process of the active-region filament eruption in the chromosphere and the corona. Using the SOHO/MDI magnetograms, we investigated the change of the magnetic fields in the photosphere. Using the GOES soft X-ray flux and the SOHO/LASCO images, we identified the flare and CME, which were associated with this active-region filament eruption. Results. The brightenings in the chromosphere are a precursor of the filament expansion. The eruption itself can be divided into four phases: In the initial phase, the intertwined bright and dark strands of the filament expand. Then, the bright strands are divided into three parts with different expansion velocity. Next, the erupting filament-carrying flux rope expands rapidly and combines with the lower part of the expanding bright strands. Finally, the filament erupts accompanied by other dark strands overlying the filament. The overlying magnetic loops and the expansion of the filament strands can change the direction of the eruption. Conclusions. The time delay between the velocity peaks of the filament and that of the two parts of the bright strands clearly demonstrates that the breakup of the bright loops tying on the filament into individual strands is important for its eruption. The eruption is a collection of multiple processes that are physically coupled rather than a single process.
项目资助者National Science Foundation of China (NSFC) [11373066, 11078005, 40636031] ; Key Laboratory of Solar Activity of CAS [KLSA201303] ; National Basic Research Program of China 973 [G2011CB811400]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
归档日期2013-09-22
WOS记录号WOS:000325211900007
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; MAGNETIC-FLUX ROPES ; SOLAR-FLARES ; KINK INSTABILITY ; BREAKOUT MODEL ; EMERGING FLUX ; SOHO MISSION ; RECONNECTION ; EQUILIBRIUM ; PROMINENCES
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被引频次:4[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/114a53/6220
专题太阳物理研究组
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, 650011 Kunming, PR China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, PR China
3.University of Chinese Academy of Sciences, Zhongguancun, 100049 Beijing, PR China
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Yan XL,Qu ZQ,Kong DF,et al. Case study of a complex active-region filament eruption[J]. ASTRONOMY & ASTROPHYSICS,2013,557:108-117.
APA Yan XL,Qu ZQ,Kong DF,Deng LH,Xue ZK,&Yan, XL .(2013).Case study of a complex active-region filament eruption.ASTRONOMY & ASTROPHYSICS,557,108-117.
MLA Yan XL,et al."Case study of a complex active-region filament eruption".ASTRONOMY & ASTROPHYSICS 557(2013):108-117.
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