YNAO OpenIR  > 抚仙湖太阳观测站
Observation of the Kelvin-Helmholtz Instability in a Solar Prominence
Yang, Heesu1; Xu Z(徐稚)2; Lim, Eun-Kyung1; Kim, Sujin1,3; Cho, Kyung-Suk1,3; Kim, Yeon-Han1,3; Chae, Jongchul4; Cho, Kyuhyoun4; Ji KF(季凯帆)2; Yang, Heesu, Email: hsyang@kasi.re.kr
2018-04-20
发表期刊ASTROPHYSICAL JOURNAL
ISSN0004-637X
卷号857期号:2
产权排序第2完成单位
摘要Many solar prominences end their lives in eruptions or abrupt disappearances that are associated with dynamical or thermal instabilities. Such instabilities are important because they may be responsible for energy transport and conversion. We present a clear observation of a streaming kink-mode Kelvin-Helmholtz Instability (KHI) taking place in a solar prominence using the H alpha Lyot filter installed at the New Vacuum Solar Telescope, Fuxian-lake Solar Observatory in Yunnan, China. On one side of the prominence, a series of plasma blobs floated up from the chromosphere and streamed parallel to the limb. The plasma stream was accelerated to about 20-60 km s(-1) and then undulated. We found that 2 ''- and 5 ''-size vortices formed, floated along the stream, and then broke up. After the 5 ''-size vortex, a plasma ejection out of the stream was detected in the Solar Dynamics Observatory/Atmospheric Imaging Assembly images. Just before the formation of the 5 ''-size vortex, the stream displayed an oscillatory transverse motion with a period of 255 s with the amplitude growing at the rate of 0.001 s(-1). We attribute this oscillation of the stream and the subsequent formation of the vortex to the KHI triggered by velocity shear between the stream, guided by the magnetic field and the surrounding media. The plasma ejection suggests the transport of prominence material into the upper layer by the KHI in its nonlinear stage.
关键词Instabilities Sun: Chromosphere Sun: Filaments Prominences
学科领域天文学
DOI10.3847/1538-4357/aab789
项目资助者Korea Astronomy and Space Science Institute(2018185003) ; National Natural Science Foundation of China(11473064)
URL查看原文
收录类别SCI
语种英语
文章类型Article
WOS研究方向Astronomy & Astrophysics
WOS标题词Science & Technology ; Physical Sciences
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000430745400005
关键词[WOS]LARGE-AMPLITUDE OSCILLATION ; POLAR CROWN FILAMENT ; CURRENT SHEET ; QUIESCENT PROMINENCES ; RECONNECTION ; TRANSPORT ; EVOLUTION ; BOUNDARY ; MOTION ; WAVES
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12365
专题抚仙湖太阳观测站
通讯作者Yang, Heesu, Email: hsyang@kasi.re.kr
作者单位1.Korea Astronomy & Space Science Institute, Daejeon 34055, Republic of Korea
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
3.University of Science and Technology, Daejeon, Republic of Korea
4.Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
推荐引用方式
GB/T 7714
Yang, Heesu,Xu Z,Lim, Eun-Kyung,et al. Observation of the Kelvin-Helmholtz Instability in a Solar Prominence[J]. ASTROPHYSICAL JOURNAL,2018,857(2).
APA Yang, Heesu.,Xu Z.,Lim, Eun-Kyung.,Kim, Sujin.,Cho, Kyung-Suk.,...&Yang, Heesu, Email: hsyang@kasi.re.kr.(2018).Observation of the Kelvin-Helmholtz Instability in a Solar Prominence.ASTROPHYSICAL JOURNAL,857(2).
MLA Yang, Heesu,et al."Observation of the Kelvin-Helmholtz Instability in a Solar Prominence".ASTROPHYSICAL JOURNAL 857.2(2018).
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
Observation of the K(3790KB)期刊论文出版稿开放获取CC BY-NC-SA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
[Yang, Heesu]的文章
[Xu Z(徐稚)]的文章
[Lim, Eun-Kyung]的文章
百度学术
百度学术中相似的文章
[Yang, Heesu]的文章
[Xu Z(徐稚)]的文章
[Lim, Eun-Kyung]的文章
必应学术
必应学术中相似的文章
[Yang, Heesu]的文章
[Xu Z(徐稚)]的文章
[Lim, Eun-Kyung]的文章
相关权益政策
暂无数据
收藏/分享
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。