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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
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2018-02-01
Volume853Issue:2
DOI10.3847/2041-8213/aaa88c
Contribution Rank第3完成单位
Indexed BySCI
KeywordSun: Chromosphere Sun: Corona Sun: Filaments Magnetic Reconnection
Abstract

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.

Funding ProjectNational Natural Science Foundation of China[41474150] ; National Natural Science Foundation of China[41404135] ; National Natural Science Foundation of China[41474149] ; Young Scholar Program of Shandong University, Weihai[2017WHWLJH07]
Funding OrganizationNational Natural Science Foundation of China[41474150, 41404135, 41474149] ; Young Scholar Program of Shandong University, Weihai[2017WHWLJH07]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000423868700008
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEXPLOSIVE EVENTS ; HIGH-RESOLUTION ; CORONAL LOOPS ; FLUX TUBES ; TELESCOPE ; EMERGENCE ; MODEL ; JETS ; SUN
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12286
Collection抚仙湖太阳观测站
Corresponding AuthorHuang, Zhenghua
Affiliation1.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
Recommended Citation
GB/T 7714
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,&Xia, Lidong.(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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