YNAO OpenIR  > 抚仙湖太阳观测站
Failed eruptions of two intertwining small-scale filaments
Xue ZK(薛志科)1,2,3; Yan XL(闫晓理)1; Zhao L(赵丽)1; Xiang YY(向永源)1; Yang LH(杨丽恒)1; Guo, Yang3
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2016-02-01
Volume68Issue:1
DOI10.1093/pasj/psv113
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: activity Sun: corona Sun: filaments, prominences Sun: magnetic fields
Abstract

Using multi-wavelength observations of the New Vacuum Solar Telescope (NVST), the Atmospheric Imaging Assembly (AIA) and Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO), we study the topology and evolutions of two filaments observed in NOAA active region (AR) 12031 on 2014 April 7. Before their eruptions, the two filaments (F1 and F2) were sinistral filaments, and the left part of F1 (LP) was located above F2, the right part of F1 (RP) under F2. They show an overall intertwining structure. LP erupted first and rotated clockwise. The total rotation angle was about 470 degrees (approximate to 2.61 pi). With its rotation, most of the plasma fell back, and thus it was a failed eruption. Meanwhile, when LP erupted to a higher altitude, the overlying magnetic loops were partially pushed from the northeast to the southwest with projected speeds from 36 to 105 km s(-1). Next, F2 began to erupt and, when reaching a certain height, the plasma of F2 started to fall down to their footpoints. Using the potential-field source-surface (PFSS) model, the decay indexes at five positions along the polarity inversion line of AR 12031 were calculated to be from 1.03 to 1.25 with an average value of 1.20 that was lower than the critical value for torus instability. These results imply that the kink instability was the main triggering mechanism for the eruption of F1, and the eruption of F2 was due to the decreasing of overlying magnetic loops caused by the eruption of F1. The eruptions of two filaments were confined by the large-scale overlying magnetic loops.

Funding ProjectNational Science Foundation of China (NSFC)[11503080] ; National Science Foundation of China (NSFC)[11573012] ; National Science Foundation of China (NSFC)[11373066] ; National Science Foundation of China (NSFC)[11373065] ; National Science Foundation of China (NSFC)[11473064] ; Key Laboratory of Solar Activity of CAS[KLSA201412] ; Key Laboratory of Solar Activity of CAS[KLSA201407] ; Yunnan Science Foundation of China[2013FB086] ; Talent Project of Western Light of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS[2011056]
Funding OrganizationNational Science Foundation of China (NSFC)(11503080, 11573012, 11373066, 11373065, 11473064) ; Key Laboratory of Solar Activity of CAS(KLSA201412, KLSA201407) ; Yunnan Science Foundation of China(2013FB086) ; Talent Project of Western Light of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS(2011056)
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
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0004-6264
URL查看原文
Archive Date2016-12-15
WOS IDWOS:000374571300010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; DYNAMICS-OBSERVATORY SDO ; ACTIVE-REGION FILAMENT ; MAGNETIC-FLUX ROPE ; KINK INSTABILITY ; SOLAR-FLARES ; MINIATURE FILAMENT ; SLOW RISE ; MODEL ; LOOPS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9609
Collection抚仙湖太阳观测站
Corresponding AuthorXue ZK(薛志科)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xue ZK,Yan XL,Zhao L,et al. Failed eruptions of two intertwining small-scale filaments[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2016,68(1).
APA Xue ZK,Yan XL,Zhao L,Xiang YY,Yang LH,&Guo, Yang.(2016).Failed eruptions of two intertwining small-scale filaments.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,68(1).
MLA Xue ZK,et al."Failed eruptions of two intertwining small-scale filaments".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 68.1(2016).
Files in This Item:
File Name/Size DocType Version Access License
Failed eruptions of (4885KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xue ZK(薛志科)]'s Articles
[Yan XL(闫晓理)]'s Articles
[Zhao L(赵丽)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xue ZK(薛志科)]'s Articles
[Yan XL(闫晓理)]'s Articles
[Zhao L(赵丽)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xue ZK(薛志科)]'s Articles
[Yan XL(闫晓理)]'s Articles
[Zhao L(赵丽)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Failed eruptions of two intertwining small-scale filaments.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.