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PMO OpenIR  > 太阳活动的多波段观测研究团组  > 期刊论文
题名: Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope
作者: Wang, Haimin1, 2; Cao, Wenda1, 2; Liu, Chang1, 2; Xu, Yan1, 2; Liu, Rui3, 4; Zeng, Zhicheng2; Chae, Jongchul5; Ji HaiSheng(季海生)6
刊名: NATURE COMMUNICATIONS
出版日期: 2015-04-01
卷号: 6, 页码:7008
学科分类: 天文和天体物理
DOI: 10.1038/ncomms8008
文章类型: Article
英文摘要: Magnetic flux ropes are highly twisted, current-carrying magnetic fields. They are crucial for the instability of plasma involved in solar eruptions, which may lead to adverse space weather effects. Here we present observations of a flaring using the highest resolution chromospheric images from the 1.6-m New Solar Telescope at Big Bear Solar Observatory, supplemented by a magnetic field extrapolation model. A set of loops initially appear to peel off from an overall inverse S-shaped flux bundle, and then develop into a multi-stranded twisted flux rope, producing a two-ribbon flare. We show evidence that the flux rope is embedded in sheared arcades and becomes unstable following the enhancement of its twists. The subsequent motion of the flux rope is confined due to the strong strapping effect of the overlying field. These results provide a first opportunity to witness the detailed structure and evolution of flux ropes in the low solar atmosphere.
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: CORONAL MASS EJECTIONS ; FLUX-ROPE ; ACTIVE-REGION ; BIG-BEAR ; ERUPTION ; RECONSTRUCTION ; MAGNETOGRAPH ; INSTABILITY ; TRACKING ; FIELDS
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000353705800001
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14920
Appears in Collections:太阳活动的多波段观测研究团组_期刊论文

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作者单位: 1.New Jersey Inst Technol, Space Weather Res Lab, Newark, NJ 07102 USA
2.New Jersey Inst Technol, Big Bear Solar Observ, Big Bear City, CA 92314 USA
3.Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Peoples R China
4.Collaborat Innovat Ctr Astronaut Sci & Technol, Beijing, Peoples R China
5.Seoul Natl Univ, Astron Program, Dept Phys & Astron, Seoul 151747, South Korea
6.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
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