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Why Do Torus-unstable Solar Filaments Experience Failed Eruptions?

文献类型：期刊论文

作者Zhou, Zhenjun1,2,3,4; Cheng, Xin5,6; Zhang, Jie7; Wang, Yuming3,8; Wang, Dong8,9; Liu, Lijuan1,3; Zhuang, Bin8; Cui, Jun1,3
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2019-06-01
卷号877期号:2页码:6
关键词instabilities Sun: corona Sun: coronal mass ejections (CMEs) Sun: filaments, prominences
ISSN号2041-8205
DOI10.3847/2041-8213/ab21cb
英文摘要We study the magnetic field and 3D configuration of 16 filament eruptions during 2010 July-2013 February in order to investigate the factors that control the success and/or failure of solar eruptions. All of these events, i.e., eruptions that failed to be ejected and become coronal mass ejections, have filament maximum heights exceeding 100 Mm. The magnetic field of filament source regions is approximated by a potential field extrapolation method. The filament 3D configuration is reconstructed from three vantage points by the observations of Solar Terrestrial Relations Observatory Ahead/Behind and Solar Dynamics Observatory spacecraft. We calculate the decay index at the apex of these failed filaments and find that in seven cases, their apex decay indexes exceed the theoretical threshold (n(crit) = 1.5) of the torus instability (TI). We further determine the orientation change or rotation angle of each filament top during the eruption. Finally, the distribution of these events in the parameter space of rotation angle versus decay index is established. Four distinct regimes in the parameter space are empirically identified. We find that all the torus-unstable cases (decay index n > 1.5) have large rotation angles ranging from 50 degrees to 130 degrees. The possible mechanisms leading to the rotation and failed eruption are discussed. These results imply that, in addition to the TI, the rotation motion during the eruption may also play a significant role in solar eruptions.
WOS关键词CORONAL MASS EJECTIONS ; FLUX ROPE ; KINK ; INSTABILITY
资助项目Open Research Program of CAS Key Laboratory of Solar Activity[KLSA201811] ; NSFC[11722325] ; NSFC[11733003] ; NSFC[11790303] ; NSFC[11790300] ; NSFC[41574165] ; NSFC[41761134088] ; NSFC[41774178] ; NSFC[11803096] ; NSFC[41525015] ; NSFC[41774186] ; Jiangsu NSF[BK20170011] ; Alexander von Humboldt foundation ; US NSF[AGS-1249270] ; NSF[AGS1156120] ; Natural Science Foundation of Anhui Province Education Department[KJ2017A493] ; Natural Science Foundation of Anhui Province Education Department[gxyq2018030] ; Open Project of CAS Key Laboratory of Geospace Environment
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000469977000002
出版者IOP PUBLISHING LTD
资助机构Open Research Program of CAS Key Laboratory of Solar Activity ; Open Research Program of CAS Key Laboratory of Solar Activity ; NSFC ; NSFC ; Jiangsu NSF ; Jiangsu NSF ; Alexander von Humboldt foundation ; Alexander von Humboldt foundation ; US NSF ; US NSF ; NSF ; NSF ; Natural Science Foundation of Anhui Province Education Department ; Natural Science Foundation of Anhui Province Education Department ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Research Program of CAS Key Laboratory of Solar Activity ; Open Research Program of CAS Key Laboratory of Solar Activity ; NSFC ; NSFC ; Jiangsu NSF ; Jiangsu NSF ; Alexander von Humboldt foundation ; Alexander von Humboldt foundation ; US NSF ; US NSF ; NSF ; NSF ; Natural Science Foundation of Anhui Province Education Department ; Natural Science Foundation of Anhui Province Education Department ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Research Program of CAS Key Laboratory of Solar Activity ; Open Research Program of CAS Key Laboratory of Solar Activity ; NSFC ; NSFC ; Jiangsu NSF ; Jiangsu NSF ; Alexander von Humboldt foundation ; Alexander von Humboldt foundation ; US NSF ; US NSF ; NSF ; NSF ; Natural Science Foundation of Anhui Province Education Department ; Natural Science Foundation of Anhui Province Education Department ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Research Program of CAS Key Laboratory of Solar Activity ; Open Research Program of CAS Key Laboratory of Solar Activity ; NSFC ; NSFC ; Jiangsu NSF ; Jiangsu NSF ; Alexander von Humboldt foundation ; Alexander von Humboldt foundation ; US NSF ; US NSF ; NSF ; NSF ; Natural Science Foundation of Anhui Province Education Department ; Natural Science Foundation of Anhui Province Education Department ; Open Project of CAS Key Laboratory of Geospace Environment ; Open Project of CAS Key Laboratory of Geospace Environment
源URL[http://ir.bao.ac.cn/handle/114a11/26442]  
专题中国科学院国家天文台
通讯作者Zhou, Zhenjun
作者单位1.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519000, Guangdong, Peoples R China
2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China
3.CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China
4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Guangdong, Peoples R China
5.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
6.Max Planck Inst Solar Syst Res, D-37077 Gottingen, Germany
7.George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA
8.Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Anhui, Peoples R China
9.Anhui Jianzhu Univ, Dept Math & Phys, Hefei 230601, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Zhenjun,Cheng, Xin,Zhang, Jie,et al. Why Do Torus-unstable Solar Filaments Experience Failed Eruptions?[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,877(2):6.
APA Zhou, Zhenjun.,Cheng, Xin.,Zhang, Jie.,Wang, Yuming.,Wang, Dong.,...&Cui, Jun.(2019).Why Do Torus-unstable Solar Filaments Experience Failed Eruptions?.ASTROPHYSICAL JOURNAL LETTERS,877(2),6.
MLA Zhou, Zhenjun,et al."Why Do Torus-unstable Solar Filaments Experience Failed Eruptions?".ASTROPHYSICAL JOURNAL LETTERS 877.2(2019):6.

入库方式： OAI收割

来源：国家天文台

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