PMO OpenIR  > 太阳活动的多波段观测研究团组
Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope
Wang, Haimin1,2; Cao, Wenda1,2; Liu, Chang1,2; Xu, Yan1,2; Liu, Rui3,4; Zeng, Zhicheng2; Chae, Jongchul5; Ji, Haisheng6
2015-04-01
Source PublicationNATURE COMMUNICATIONS
Volume6Pages:7008
AbstractMagnetic 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.
Subject Area天文和天体物理
WOS HeadingsScience & Technology
DOI10.1038/ncomms8008
WOS KeywordCORONAL MASS EJECTIONS ; FLUX-ROPE ; ACTIVE-REGION ; BIG-BEAR ; ERUPTION ; RECONSTRUCTION ; MAGNETOGRAPH ; INSTABILITY ; TRACKING ; FIELDS
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000353705800001
Citation statistics
Cited Times:62[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14920
Collection太阳活动的多波段观测研究团组
Affiliation1.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
Recommended Citation
GB/T 7714
Wang, Haimin,Cao, Wenda,Liu, Chang,et al. Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope[J]. NATURE COMMUNICATIONS,2015,6:7008.
APA Wang, Haimin.,Cao, Wenda.,Liu, Chang.,Xu, Yan.,Liu, Rui.,...&Ji, Haisheng.(2015).Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope.NATURE COMMUNICATIONS,6,7008.
MLA Wang, Haimin,et al."Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope".NATURE COMMUNICATIONS 6(2015):7008.
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