SHINE: The Magnetic Connection between the Sun and Heliosphere

闪耀：太阳与日光层之间的磁力联系

• 批准号: 0327701
• 负责人: Spiro Antiochos
• 金额: $ 33.41万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-10-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0327701&HistoricalAwards=false
• 关键词: SHINE; Magnetic; Connection; between; Sun

This multi-faceted research program is designed to address several outstanding problems in solar and heliospheric physics including the observed rigid rotation of coronal holes and the apparent contradictions between solar imaging and in situ observations of the evolution of the sun's open magnetic field. The methodology balances theoretical modeling, large-scale numerical simulation, and the analysis of various solar and heliospheric data sets. Analytic models will be used to investigate various topologies of open and closed magnetic fields during epochs when the solar surface exhibits complex magnetic polarity distributions. Three-dimensional numerical simulations will subsequently be employed to model the dynamical behavior of these topologies, in particular, the interchange reconnection between open and closed magnetic flux. The simulations rely on a new state-of-the-art magnetohydrodynamics code, which encompasses a fully adaptive mesh, and is optimized for all the latest parallel architectures. Such calculations are essential for understanding not only the solar-heliospheric dynamic coupling, but also three-dimensional magnetic reconnection, the basic process central to most of space physics.

这个多方面的研究计划旨在解决太阳和日光层物理学中的几个突出问题，包括观测到的冕洞刚性旋转以及太阳成像和太阳开放磁场演变的现场观测之间的明显矛盾。 该方法平衡了理论建模、大规模数值模拟以及对各种太阳和日光层数据集的分析。 分析模型将被用来调查各种拓扑结构的开放和封闭的磁场在时代，当太阳表面表现出复杂的磁极性分布。 随后将采用三维数值模拟来模拟这些拓扑结构的动力学行为，特别是开放和封闭磁通量之间的交换重联。 模拟依赖于一个新的国家的最先进的磁流体动力学代码，其中包括一个完全自适应的网格，并优化所有最新的并行架构。 这种计算不仅对于理解太阳-日光层动力学耦合，而且对于理解三维磁场重联这一对大多数空间物理学至关重要的基本过程都至关重要。