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Current Sheets in the Wake of an Eruption of Two Crossing Filaments
Dai J(戴俊)1,2,3; Yang JY(杨家艳)1,2,4; Li, Leping2,3; Zhang, Jun2,3
Source PublicationASTROPHYSICAL JOURNAL
2018-12-20
Volume869Issue:2Pages:7
DOI10.3847/1538-4357/aacdbb
Contribution Rank第1完成单位
Indexed BySCI
Keywordmagnetic reconnection Sun: coronal mass ejections (CMEs) Sun: filaments, prominences Sun: flares Sun: UV radiation
Abstract

Employing Solar Dynamic Observatory/Atmospheric Imaging Assembly (AIA) multi-wavelength images, we study an eruption of two crossing filaments, and report for the first time the current sheets (CSs) connecting the lower flare ribbons and the upper erupting filaments. On 2014 July 8, two crossing filaments are observed in the NOAA active region 12113. The lower-lying filament rises first, and then meets the higher-lying one. Thereafter, both of them erupt together. The filament eruption draws the overlying magnetic field lines upward, leading to the approach of two legs, with opposite magnetic polarities, of the overlying field lines. Two sets of bright CSs form at the interface of these two legs, and magnetic reconnection takes place in the CSs producing the underneath flare ribbons and post-flare loops. Several bright plasmoids appear in the CSs, and propagate along the CSs bidirectionally. The CSs and plasmoids are observed in AIA multi-wavelength channels, indicating that both of them have been heated during the reconnection process, with hot and warm components. Employing the differential emission measure (EM) analysis, we find that both the temperature and EM of the CSs decrease from the flare arcades outward to the erupting filaments, and those of the plasmoids are significantly larger than the regions where no plasmoid is detected.

Funding ProjectNational Foundations of China[11633008] ; National Foundations of China[11703084] ; National Foundations of China[11673034] ; National Foundations of China[11533008] ; National Foundations of China[11790304] ; National Foundations of China[11773039] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050]
Funding OrganizationNational Foundations of China[11633008, 11703084, 11673034, 11533008, 11790304, 11773039] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050]
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
ISSN0004-637X
URL查看原文
WOS IDWOS:000453821200004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordFLUX ROPE ERUPTION ; MAGNETIC RECONNECTION ; SOLAR FILAMENT ; EJECTIONS ; EVOLUTION ; OUTFLOWS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/18641
Collection太阳物理研究组
Corresponding AuthorYang JY(杨家艳)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Dai J,Yang JY,Li, Leping,et al. Current Sheets in the Wake of an Eruption of Two Crossing Filaments[J]. ASTROPHYSICAL JOURNAL,2018,869(2):7.
APA Dai J,Yang JY,Li, Leping,&Zhang, Jun.(2018).Current Sheets in the Wake of an Eruption of Two Crossing Filaments.ASTROPHYSICAL JOURNAL,869(2),7.
MLA Dai J,et al."Current Sheets in the Wake of an Eruption of Two Crossing Filaments".ASTROPHYSICAL JOURNAL 869.2(2018):7.
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