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The Eruption of a Small-scale Emerging Flux Rope as the Driver of an M-class Flare and of a Coronal Mass Ejection
Yan XL(闫晓理)1,2,3; Jiang, C. W.4; Xue ZK(薛志科)1,3; Wang JC(王建成)1,5; Priest, E. R.6; Yang LH(杨丽恒)1,3; Kong DF(孔德芳)1,2,3; Cao, W. D.7; Ji, H. S.8; Yan, X. L.(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China)
发表期刊ASTROPHYSICAL JOURNAL
2017-08-10
卷号845期号:1
DOI10.3847/1538-4357/aa7e29
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Magnetic Fields Sun: Photosphere Sunspots
摘要Solar flares and coronal mass ejections are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain controversial. Using high-resolution data observed by the New Solar Telescope of Big Bear Solar Observaotry, supplemented by Solar Dynamics Observatory observations, we present unusual observations of a small-scale emerging flux rope near a large sunspot, whose eruption produced an M-class flare and a coronal mass ejection. The presence of the small-scale flux rope was indicated by static nonlinear force-free field extrapolation as well as data-driven magnetohydrodynamics modeling of the dynamic evolution of the coronal three-dimensional magnetic field. During the emergence of the flux rope, rotation of satellite sunspots at the footpoints of the flux rope was observed. Meanwhile, the Lorentz force, magnetic energy, vertical current, and transverse fields were increasing during this phase. The free energy from the magnetic flux emergence and twisting magnetic fields is sufficient to power the M-class flare. These observations present, for the first time, the complete process, from the emergence of the small-scale flux rope, to the production of solar eruptions.
项目资助者National Science Foundation of China (NSFC)(11373066, 11603071, 11503080, 11633008, 11533008) ; Key Laboratory of Solar Activity of CAS(KLSA201603, KLSA201508) ; Yunnan Science Foundation of China(2013FB086) ; CAS "Light of West China" Program ; Youth Innovation Promotion Association CAS(2011056) ; national basic research program of China (973 program)(2011CB811400) ; NJIT ; US NSF(AGS-1250818) ; NASA(NNX13AG14G) ; Korea Astronomy and Space Science Institute ; strategic priority research program of CAS(XDB09000000) ; Seoul National University
语种英语
学科领域天文学
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2017-09-08
WOS记录号WOS:000407168000005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MAGNETIC-FIELD ; SOLAR-FLARES ; ACTIVE-REGION ; KINK INSTABILITY ; RAPID ROTATION ; CURRENT SHEETS ; EMERGENCE ; RECONNECTION ; SUNSPOT ; MODEL
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/11889
专题抚仙湖太阳观测站
通讯作者Yan, X. L.(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, Yunnan, P. R. China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, P. R. China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, P. R. China
4.Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 5180055, P. R. China
5.Graduate School of University of Chinese Academy of Sciences, Yuquan Road, Shijing-shang Block Beijing 100049, P. R. China
6.Mathematics Institute, University of St Andrews, St Andrews, KY16 9SS, UK
7.Big Bear Solar Observatory, 40386 North Shore Lane, Big Bear City, CA 92314, USA
8.Key Laboratory for Dark Matter and Space Science, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, P. R. China
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Yan XL,Jiang, C. W.,Xue ZK,et al. The Eruption of a Small-scale Emerging Flux Rope as the Driver of an M-class Flare and of a Coronal Mass Ejection[J]. ASTROPHYSICAL JOURNAL,2017,845(1).
APA Yan XL.,Jiang, C. W..,Xue ZK.,Wang JC.,Priest, E. R..,...&Yan, X. L..(2017).The Eruption of a Small-scale Emerging Flux Rope as the Driver of an M-class Flare and of a Coronal Mass Ejection.ASTROPHYSICAL JOURNAL,845(1).
MLA Yan XL,et al."The Eruption of a Small-scale Emerging Flux Rope as the Driver of an M-class Flare and of a Coronal Mass Ejection".ASTROPHYSICAL JOURNAL 845.1(2017).
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