YNAO OpenIR  > 太阳物理研究组
PARTIAL ERUPTION OF A FILAMENT WITH TWISTING NON-UNIFORM FIELDS
Bi Y(毕以)1,2; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Xiang YY(向永源)1; Cai YF(蔡云芳)1; Liu WW(刘威卫)1; Bi, Y (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2015-05-20
卷号805期号:1
DOI10.1088/0004-637X/805/1/48
产权排序第1完成单位
收录类别SCI
关键词Sun: Magnetic Fields Sun: Filaments Prominences
摘要The eruption of a filament in a kinklike fashion is often regarded as a signature of kink instability. However, the kink instability threshold for the filament's magnetic structure is not widely understood. Using Ha observations from the New Vacuum Solar Telescope, we present a partial eruptive filament. During the eruption, the filament thread appeared to split from its middle and to break out in a kinklike fashion. In this period, the remaining filament material stayed below and erupted without the kinking motion later on. The coronal magnetic field lines associated with the filament are obtained from nonlinear force-free field extrapolations using the twelve-minute-cadence vector magnetograms of the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamic Observatory. We studied the extrapolated field lines passing through the magnetic dips which are in good agreement with the observed filament. The field lines are non-uniformly twisted and appear to be composed of two twisted flux ropes winding around each other. One of them has a higher twist than the other, and the flux rope with the higher twist has its dips aligned with the kinking eruptive thread at the beginning of its eruption. Before the eruption, moreover, the flux rope with the higher twist was found to expand with an approximately constant field twist. In addition, the helicity flux maps deduced from the HMI magnetograms show that some helicity is injected into the overlying magnetic arcade, but no significant helicity is injected into the flux ropes. Accordingly, we suggest that the highly twisted flux rope became kink unstable when the instability threshold declined with the expansion of the flux rope.
项目资助者Natural Science Foundation of China [11403098, 11173058, 11473065, 11273056] ; Open Research Programs of CAS
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2015-05-23
WOS记录号WOS:000354991300048
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MAGNETIC-FIELDS ; FLUX ROPE ; KINK INSTABILITY ; SOLAR FILAMENT ; MASS EJECTIONS ; OBSERVATIONAL EVIDENCE ; VECTOR MAGNETOGRAPH ; RECONSTRUCTION ; HELICITY ; ROTATION
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6268
专题太阳物理研究组
通讯作者Bi, Y (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式
GB/T 7714
Bi Y,Jiang YC,Yang JY,et al. PARTIAL ERUPTION OF A FILAMENT WITH TWISTING NON-UNIFORM FIELDS[J]. ASTROPHYSICAL JOURNAL,2015,805(1).
APA Bi Y.,Jiang YC.,Yang JY.,Xiang YY.,Cai YF.,...&Bi, Y .(2015).PARTIAL ERUPTION OF A FILAMENT WITH TWISTING NON-UNIFORM FIELDS.ASTROPHYSICAL JOURNAL,805(1).
MLA Bi Y,et al."PARTIAL ERUPTION OF A FILAMENT WITH TWISTING NON-UNIFORM FIELDS".ASTROPHYSICAL JOURNAL 805.1(2015).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
PARTIAL ERUPTION OF (6188KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Bi Y(毕以)]的文章
[Jiang YC(姜云春)]的文章
[Yang JY(杨家艳)]的文章
百度学术
百度学术中相似的文章
[Bi Y(毕以)]的文章
[Jiang YC(姜云春)]的文章
[Yang JY(杨家艳)]的文章
必应学术
必应学术中相似的文章
[Bi Y(毕以)]的文章
[Jiang YC(姜云春)]的文章
[Yang JY(杨家艳)]的文章
相关权益政策
暂无数据
收藏/分享
文件名: PARTIAL ERUPTION OF A FILAMENT WITH TWISTING NON-UNIFORM FIELDS.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。