| 项目编号: | 1460169
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| 项目名称: | SHINE: Plasma Instabilities in Post-Eruption Solar Corona, Formation of Plasmoids and Supra-Arcade Downflows |
| 作者: | Yi-Min Huang
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| 承担单位: | Princeton University
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| 批准年: | 2014
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| 开始日期: | 2015-05-15
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| 结束日期: | 2018-04-30
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| 资助金额: | USD357000
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| 资助来源: | US-NSF
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| 项目类别: | Continuing grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | project
; plasma physics
; solar observation
; solar corona
; sad
; coronal mass ejection
; basic plasma physicist
; solar observer
; current sheet
; coronal eruption
; solar physics
; plasma instability
; fusion plasma
; plasmoid formation
; female postdoctoral fellow
; realistic coronal configuration
; secondary rayleigh-taylor type instability
; supra-arcade downflow
; plasmoid instability
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| 英文摘要: | This 3-year SHINE project is aimed at studying plasma instabilities in the solar corona during coronal mass ejections by means to 3-D numerical simulations in realistic coronal configurations. Although the emphasis of this project is on solar physics, the research outcome has broader implications for the Earth's magnetotail, dayside magnetopause, fusion plasmas, and astrophysics. The research will be carried out at the newly established Princeton Center for Heliospheric Physics, which promotes interdisciplinary and international collaborations between basic plasma physicists and solar observers. These collaborations are pursued in synergy with the Max-Planck/Princeton Center for Plasma Physics, which is funded jointly by the NSF, DoE, Max Planck Institute, and Princeton University. This research project will involve a graduate student and a female postdoctoral fellow, and it will contribute to the training of scientists with backgrounds in both solar observations and numerical modeling. Some aspects of the research program are tightly coupled to the academic program in plasma physics at Princeton University, and there will be a new course in space and astrophysical plasma physics to be taught at the Department of Astrophysical Sciences by the Co-PI. The research and EPO agenda of this project supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research.
The main goal of this SHINE project is to investigate the cause of current sheet broadening and the physical origin of supra-arcade downflows (SADs) during a coronal mass ejection (CME). The three major tasks of this project are to investigate: (1) the role of plasmoid instabilities in producing turbulent reconnection in line-tied coronal current sheets, and the role such turbulence plays in the observed broadening of current sheets; (2) the role of secondary Rayleigh-Taylor type instabilities in reconnection exhaust regions in producing the observed characteristics of SADs; and, (3) the formation of plasmoids and SADs during a CME. One important aspect of this project is to foster cross-comparison, verification, and validation between simulations and solar observations. One of the major goals is to establish the capability of capturing coronal eruption, plasmoid formation, and SADs within a single simulation. The results of this project are expected to further advance our understanding in how the magnetic energy is stored and released in large-scale systems such as the solar corona. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94657
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Yi-Min Huang. SHINE: Plasma Instabilities in Post-Eruption Solar Corona, Formation of Plasmoids and Supra-Arcade Downflows. 2014-01-01.
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