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A Magnetic Reconnection Event in the Solar Atmosphere Driven by Relaxation of a Twisted Arch Filament System
Huang, Zhenghua1; Mou, Chaozhou1; Fu, Hui1; Deng LH(邓林华)2,3; Li, Bo1; Xia, Lidong1; Huang, Zhenghua(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Shandong, Peoples R China)
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2018-02-01
卷号853期号:2
DOI10.3847/2041-8213/aaa88c
产权排序第3完成单位
收录类别SCI
关键词Sun: Chromosphere Sun: Corona Sun: Filaments Magnetic Reconnection
摘要We present high-resolution observations of a magnetic reconnection event in the solar atmosphere taken with the New Vacuum Solar Telescope, Atmospheric Imaging Assembly (AIA), and Helioseismic and Magnetic Imager (HMI). The reconnection event occurred between the threads of a twisted arch filament system (AFS) and coronal loops. Our observations reveal that the relaxation of the twisted AFS drives some of its threads to encounter the coronal loops, providing inflows of the reconnection. The reconnection is evidenced by flared X-shape features in the AIA images, a current-sheet-like feature apparently connecting post-reconnection loops in the H alpha +.1 angstrom images, small-scale magnetic cancelation in the HMI magnetograms and flows with speeds of 40-80 km s(-1) along the coronal loops. The post-reconnection coronal loops seen in the AIA 94 angstrom passband appear to remain bright for a relatively long time, suggesting that they have been heated and/or filled up by dense plasmas previously stored in the AFS threads. Our observations suggest that the twisted magnetic system could release its free magnetic energy into the upper solar atmosphere through reconnection processes. While the plasma pressure in the reconnecting flux tubes are significantly different, the reconfiguration of field lines could result in transferring of mass among them and induce heating therein.
项目资助者National Natural Science Foundation of China(41474150, 41404135, 41474149) ; Young Scholar Program of Shandong University, Weihai(2017WHWLJH07)
语种英语
学科领域天文学
文章类型Article
ISSN2041-8205
URL查看原文
WOS记录号WOS:000423868700008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EXPLOSIVE EVENTS ; HIGH-RESOLUTION ; CORONAL LOOPS ; FLUX TUBES ; TELESCOPE ; EMERGENCE ; MODEL ; JETS ; SUN
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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/114a53/12286
专题抚仙湖太阳观测站
通讯作者Huang, Zhenghua(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Shandong, Peoples R China)
作者单位1.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209 Shandong, People's Republic of China
2.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, People's Republic of China
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
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Huang, Zhenghua,Mou, Chaozhou,Fu, Hui,et al. A Magnetic Reconnection Event in the Solar Atmosphere Driven by Relaxation of a Twisted Arch Filament System[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,853(2).
APA Huang, Zhenghua.,Mou, Chaozhou.,Fu, Hui.,Deng LH.,Li, Bo.,...&Huang, Zhenghua.(2018).A Magnetic Reconnection Event in the Solar Atmosphere Driven by Relaxation of a Twisted Arch Filament System.ASTROPHYSICAL JOURNAL LETTERS,853(2).
MLA Huang, Zhenghua,et al."A Magnetic Reconnection Event in the Solar Atmosphere Driven by Relaxation of a Twisted Arch Filament System".ASTROPHYSICAL JOURNAL LETTERS 853.2(2018).
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