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Three-dimensional Magnetic Reconnection Triggering an X-class Confined Flare in Active Region 12192

文献类型：期刊论文

作者Li, Ting1,2; Hou, Yijun1,2; Yang, Shuhong1,2; Zhang, Jun1,2
刊名ASTROPHYSICAL JOURNAL
出版日期2018-12-20
卷号869期号:2页码:11
ISSN号0004-637X
关键词magnetic reconnection Sun: activity Sun: flares Sun: magnetic fields
DOI10.3847/1538-4357/aaefee
英文摘要We present an extensive analysis of the X2.0-class confined flare on 2014 October 27 in the great active region, AR 12192, observed by the Interface Region Imaging Spectrograph and the Solar Dynamics Observatory. The slipping motion of the substructures within the negative-polarity flare ribbon (R1) and continual reconnection-induced flows during the confined flare are first presented. The substructures within ribbon R1 were observed to slip in opposite directions at apparent speeds of 10-70 km s(-1). The slipping motion exhibited the quasi-periodic pattern with a period of 80-110 s, which can be observed since the flare start and throughout the impulsive phase of the flare. Simultaneously quasi-periodic flows moved along a reverse S-shaped filament, with an average period of about 90 s. The period of reconnection-induced flows is similar to that of the slippage of ribbon substructures, implying the occurrence of quasi-periodic slipping magnetic reconnection. The spectral observations showed that the Si IV line was blueshifted by 50-240 km s(-1) at the location of the flows. During the process of the flare, the filament did not show the rise phase and was not associated with any failed eruption. The flare mainly consisted of two sets of magnetic systems, with both of their east ends anchoring in ribbon R1. We suggest that the slipping magnetic reconnection between two magnetic systems triggers the confined flare.
WOS关键词CORONAL MASS EJECTIONS ; SLIP-RUNNING RECONNECTION ; QUASI-SEPARATRIX LAYERS ; NULL POINTS ; CHROMOSPHERIC EVAPORATION ; RIBBONS ; EVOLUTION ; ERUPTION ; RAY ; TRANSITION
资助项目Norwegian Space Center (Norway) through an ESA PRODEX contract ; National Natural Science Foundations of China[11773039] ; National Natural Science Foundations of China[11533008] ; National Natural Science Foundations of China[11790304] ; National Natural Science Foundations of China[11673035] ; National Natural Science Foundations of China[11673034] ; National Natural Science Foundations of China[11790300] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050] ; Youth Innovation Promotion Association of CAS[2017078] ; Youth Innovation Promotion Association of CAS[2014043]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000454431700004
资助机构Norwegian Space Center (Norway) through an ESA PRODEX contract ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; Norwegian Space Center (Norway) through an ESA PRODEX contract ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS
源URL[http://ir.bao.ac.cn/handle/114a11/24240]  
专题中国科学院国家天文台
通讯作者Li, Ting
作者单位1.Chinese Acad Sci, CAS Key Lab Solar Act, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ting,Hou, Yijun,Yang, Shuhong,et al. Three-dimensional Magnetic Reconnection Triggering an X-class Confined Flare in Active Region 12192[J]. ASTROPHYSICAL JOURNAL,2018,869(2):11.
APA Li, Ting,Hou, Yijun,Yang, Shuhong,&Zhang, Jun.(2018).Three-dimensional Magnetic Reconnection Triggering an X-class Confined Flare in Active Region 12192.ASTROPHYSICAL JOURNAL,869(2),11.
MLA Li, Ting,et al."Three-dimensional Magnetic Reconnection Triggering an X-class Confined Flare in Active Region 12192".ASTROPHYSICAL JOURNAL 869.2(2018):11.

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