YNAO OpenIR  > 光纤阵列太阳光学望远镜研究组
Formation and Eruption Process of a Filament in Active Region NOAA 12241
Wang JC(王金成)1,2,3; Yan XL(闫晓理)1,3; Qu ZQ(屈中权)1,2,3; Xue ZK(薛志科)1,3; Yang LH(杨丽恒)1,3
Source PublicationASTROPHYSICAL JOURNAL
2017-04-20
Volume839Issue:2
DOI10.3847/1538-4357/aa6bf3
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Evolution Sun: Filaments Prominences
Abstract

In order to better understand active-region filaments, we present an intensive study on the formation and eruption of a filament in active region NOAA 12241 during the period from 2014 December 18 to 19. Using observations from the Helioseismic and Magnetic Imager (HMI) vector magnetograms, we investigate the helicity injection rate, Lorentz force, and vertical electric current in the entire region associated with the filament. The helicity injection rate before eruption is found to be larger than that after eruption, while the vertical electric current undergoes an increase at first and then a gradual decrease, similar to what the magnetic flux undergoes. Meanwhile, we find that the right part of the filament is formed by magnetic reconnection between two bundles of magnetic field lines while the left part originated from shearing motion. The interaction of the two parts causes the eruption of this filament. The mean horizontal magnetic fields in the vicinity of the magnetic polarity inversion line (PIL) enhance rapidly during the eruption. Another striking phenomenon, where the vertical electric currents close to the magnetic PIL suddenly expand toward two sides during the eruption, is found. We propose that this fascinating feature is associated with the release of energy during the eruption.

Funding ProjectNational Science Foundation of China (NSFC)[11373065] ; National Science Foundation of China (NSFC)[11527804] ; National Science Foundation of China (NSFC)[11373066] ; National Science Foundation of China (NSFC)[11503080] ; National Science Foundation of China (NSFC)[11633008] ; National Science Foundation of China (NSFC)[11603071] ; Key Laboratory of Solar Activity of CAS[KLSA201508] ; Yunnan Science Foundation of China[2013FB086] ; Youth Innovation Promotion Association CAS[2011056] ; Talent Project of Western Light of Chinese Academy of Sciences
Funding OrganizationNational Science Foundation of China (NSFC)[11373065, 11527804, 11373066, 11503080, 11633008, 11603071] ; Key Laboratory of Solar Activity of CAS[KLSA201508] ; Yunnan Science Foundation of China[2013FB086] ; Youth Innovation Promotion Association CAS[2011056] ; Talent Project of Western Light of Chinese Academy of Sciences
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:000403467800004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; PHOTOSPHERIC MAGNETIC-FIELD ; HELICAL FLUX ROPE ; SOLAR PROMINENCES ; LORENTZ FORCE ; INDUCTION EQUATION ; FLARES ; RECONNECTION ; EVOLUTION ; DYNAMICS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10138
Collection光纤阵列太阳光学望远镜研究组
Corresponding AuthorWang JC(王金成)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Graduate School of University of Chinese Academy of Sciences, Yuquan Road, Shijingshang Block Beijing 100049, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang JC,Yan XL,Qu ZQ,et al. Formation and Eruption Process of a Filament in Active Region NOAA 12241[J]. ASTROPHYSICAL JOURNAL,2017,839(2).
APA Wang JC,Yan XL,Qu ZQ,Xue ZK,&Yang LH.(2017).Formation and Eruption Process of a Filament in Active Region NOAA 12241.ASTROPHYSICAL JOURNAL,839(2).
MLA Wang JC,et al."Formation and Eruption Process of a Filament in Active Region NOAA 12241".ASTROPHYSICAL JOURNAL 839.2(2017).
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