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Case study of a complex active-region filament eruption
Yan XL(闫晓理)1,2; Qu ZQ(屈中权)1; Kong DF(孔德芳)1,3; Deng LH(邓林华)1,3; Xue ZK(薛志科)1,3
Source PublicationASTRONOMY & ASTROPHYSICS
2013-09
Volume557Pages:108-117
DOI10.1051/0004-6361/201219032
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordSun: activity Sun: filaments, prominences Sun: flares Sun: coronal mass ejections (CMEs) Sun: surface magnetism
Abstract

Context. We investigated a solar active-region filament eruption associated with a C6.6 class flare and a coronal mass ejection (CME) in NOAA active region 08858 on 2000 February 9. 

Aims. We aim to better understand the relationship between filament eruptions and the associated flares and CMEs. 

Methods. Using BBSO, SOHO/EIT, and TRACE observational data, we analyzed the process of the active-region filament eruption in the chromosphere and the corona. Using the SOHO/MDI magnetograms, we investigated the change of the magnetic fields in the photosphere. Using the GOES soft X-ray flux and the SOHO/LASCO images, we identified the flare and CME, which were associated with this active-region filament eruption. 

Results. The brightenings in the chromosphere are a precursor of the filament expansion. The eruption itself can be divided into four phases: In the initial phase, the intertwined bright and dark strands of the filament expand. Then, the bright strands are divided into three parts with different expansion velocity. Next, the erupting filament-carrying flux rope expands rapidly and combines with the lower part of the expanding bright strands. Finally, the filament erupts accompanied by other dark strands overlying the filament. The overlying magnetic loops and the expansion of the filament strands can change the direction of the eruption. 

Conclusions. The time delay between the velocity peaks of the filament and that of the two parts of the bright strands clearly demonstrates that the breakup of the bright loops tying on the filament into individual strands is important for its eruption. The eruption is a collection of multiple processes that are physically coupled rather than a single process.

Funding ProjectNational Science Foundation of China (NSFC)[11373066] ; National Science Foundation of China (NSFC)[11078005] ; National Science Foundation of China (NSFC)[40636031] ; Key Laboratory of Solar Activity of CAS[KLSA201303] ; National Basic Research Program of China 973[G2011CB811400]
Funding OrganizationNational Science Foundation of China (NSFC)[11373066, 11078005, 40636031] ; Key Laboratory of Solar Activity of CAS[KLSA201303] ; National Basic Research Program of China 973[G2011CB811400]
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
PublisherEDP SCIENCES S A
Publication Place17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN0004-6361
URL查看原文
Archive Date2013-09-22
WOS IDWOS:000325211900007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; MAGNETIC-FLUX ROPES ; SOLAR-FLARES ; KINK INSTABILITY ; BREAKOUT MODEL ; EMERGING FLUX ; SOHO MISSION ; RECONNECTION ; EQUILIBRIUM ; PROMINENCES
EI Accession Number20133816766787
EI KeywordsSolar system
EI Classification Number657.1Solar Energy and Phenomena - 657.2Extraterrestrial Physics and Stellar Phenomena - 701.2Magnetism: Basic Concepts and Phenomena - 932.1High Energy Physics
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6220
Collection太阳物理研究组
Corresponding AuthorYan XL(闫晓理)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, PR China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, PR China
3.University of Chinese Academy of Sciences, Zhongguancun, 100049 Beijing, PR China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yan XL,Qu ZQ,Kong DF,et al. Case study of a complex active-region filament eruption[J]. ASTRONOMY & ASTROPHYSICS,2013,557:108-117.
APA Yan XL,Qu ZQ,Kong DF,Deng LH,&Xue ZK.(2013).Case study of a complex active-region filament eruption.ASTRONOMY & ASTROPHYSICS,557,108-117.
MLA Yan XL,et al."Case study of a complex active-region filament eruption".ASTRONOMY & ASTROPHYSICS 557(2013):108-117.
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