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The interaction and eruption of two adjacent filaments
Kong DF(孔德芳)1,3; Yan XL(闫晓理)1,2; Xue ZK(薛志科)1,3; Kong, DF (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICS AND SPACE SCIENCE
2013-12
卷号348期号:2页码:303-313
DOI10.1007/s10509-013-1582-3
产权排序第1完成单位
收录类别SCI
关键词Sun: Flares Sun: Filaments Sun: Activity Prominences Sun: Coronal Mass Ejections (Cmes)
摘要We present a case study of two successive filament eruptions at the southeast limb of the Sun observed by Solar Dynamics Observatory (SDO) on 2012 April 19. At the initial stage of the first filament (F1) eruption, one leg of the F1 moved toward the second filament (F2) and swept the F2. The interaction between two filaments occurred. After the leg of the F1 swept the F2, it returned from northeast to southwest following the F1 expansion. During the F1 eruption, the middle of the F1 exhibited an obvious twisted structure. The rising speed of the F1 was 85.6 km/s. The partial material of the F1 fell back to the surface along the other leg of the F1 after the F1 eruption and the falling speed was 311.6 km/s. A CME was observed by SOHO/LASCO after the F1 eruption. One of the bright flare ribbons and the dimming regions formed after the F1 eruption were found to move toward the F2. The propagation speeds of the flare ribbons were 4.7 km/s and 4.1 km/s and the propagation speeds of the dimmings were 3 km/s and 6.3 km/s. The small active region was emerging in the northern flank of the F2. The ejection and the falling plasma in the small active region produced the disturbance to the right part of the F2. When the F1 erupted, the large-scale overlying coronal loops of the F1 were pushed out toward the southeast of the Sun by its expanding. During the F1 eruption, the large-scale overlying coronal loops of the F2 began to open toward the southeast. Following the opening of the large-scale overlying coronal loops, the F2 became instable and began to erupt. The rising speed of the F2 was 300.1 km/s. A two-ribbon flare and a weak CME were formed after the F2 eruption. These observations evidenced that the interaction of two filaments and the opening of the large-scale overlying coronal loops caused by the F1 eruption are the most important reason that led to the F2 eruption. Our observations also support the standard solar flare model.
项目资助者National Science Foundation of China (NSFC) [10903027] ; Yunnan Science Foundation of China [2009CD120] ; Key Laboratory of Solar Activity of CAS [KLSA201303]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-640X
URL查看原文
归档日期2013-11-07
WOS记录号WOS:000326598800001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; UNSTABLE FLUX ROPES ; SOLAR-FLARES ; KINK INSTABILITY ; MAGNETIC INTERACTION ; BREAKOUT MODEL ; EMERGING FLUX ; X-RAY ; LOOP ; RECONNECTION
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被引频次:7[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/114a53/6217
专题太阳物理研究组
通讯作者Kong, DF (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.University of Chinese Academy of Sciences, Zhongguancun, Beijing, 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
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Kong DF,Yan XL,Xue ZK,et al. The interaction and eruption of two adjacent filaments[J]. ASTROPHYSICS AND SPACE SCIENCE,2013,348(2):303-313.
APA Kong DF,Yan XL,Xue ZK,&Kong, DF .(2013).The interaction and eruption of two adjacent filaments.ASTROPHYSICS AND SPACE SCIENCE,348(2),303-313.
MLA Kong DF,et al."The interaction and eruption of two adjacent filaments".ASTROPHYSICS AND SPACE SCIENCE 348.2(2013):303-313.
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