Collaborative Research: DKIST Critical Science: Study of Flare Producing Active Regions with Highest Resolution Observations and Data-based Magnetohydrodynamics (MHD) Modeling

合作研究：DKIST 关键科学：利用最高分辨率观测和基于数据的磁流体动力学 (MHD) 建模研究耀斑产生的活动区域

• 批准号: 2204385
• 负责人: Qiang Hu
• 金额: $ 12.06万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2204385&HistoricalAwards=false
• 关键词: Collaborative; Research; DKIST; Critical; Science

A research team from the New Jersey Institute of Technology and the University of Alabama, Huntsville seeks examine the mechanisms that trigger solar flares through a Daniel K. Inouye Solar Telescope (DKIST) Critical Science project. They will make use of 3D computer models and ground-based and space-based telescopes to examine how energy builds up in the solar photosphere before a flare erupts. This fundamental study of the Sun is relevant to NSF's mission in two ways. First, it advances fundamental understanding of a star and can be of use for modeling flares on other stars. Second, it relates to the national priority to better understand space weather. The results of this research could be used to improve modeling for predicting solar flares. The broader impacts of this project also include support for two PhD students and will involve high school and REU (NSF/Research Experience for Undergraduates) students. The research team will address the role of small-scale magnetic reconnection in triggering solar flares and their relationships to flare precursors, as well as how photospheric flows build up energy for onset of eruptions. The project includes a plan for observational studies using a combination of space and ground-based data products. Specifically, from NASA’s Solar Dynamics Observatory (HMI - Helioseismic and Magnetic Imager), Hinode (SOT - Solar Optical Telescope-SpectroPolarimeter), Big Bear Solar Observatory’s Goode Solar Telescope (GST), and NSF’s Daniel K. Inouye Solar Telescope (DKIST). Non-Linear Force Free Field extrapolation methods will be used to obtain 3D magnetic structures for flare producing active regions. These extrapolations would be constrained with GST and DKIST data and then be used, along with derived photospheric flows, as input into an adaptive mesh refinement magnetohydrodynamic code. Results of the MHD code would then be compared with observations of flare ribbons structures and motions and post-flare magnetic topology.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

亨茨维尔（Huntsville）的新泽西州理工学院和阿拉巴马大学的研究团队寻求通过Daniel K. Inouye Solar Telescope（DKIST）批判性科学项目触发太阳能燃烧的机制。他们将利用3D计算机型号以及基于地面和太空的望远镜，以检查在爆发前在太阳能光球中积累的能量。这项对太阳的基本研究通过两种方式与NSF的任务有关。首先，它提高了对恒星的基本理解，并且可以用于对其他恒星建模耀斑。其次，它与国家优先事项有关，以更好地了解太空天气。这项研究的结果可用于改善预测太阳耀斑的建模。该项目的更广泛影响还包括对两名博士学位学生的支持，并将涉及高中和REU（NSF/本科生研究经验）。研究团队将解决小规模磁重新连接在触发太阳耀斑及其关系中的作用，以及光球流如何为喷发发作而产生能量。该项目包括使用空间和地面数据产品组合的观察性研究计划。具体来说，来自NASA的太阳能动力学天文台（HMI - 气旋和磁成像仪），Hinode（SOT-太阳能光学望远镜 - 光谱极好），Big Bear Solar天文台的良好太阳能望远镜（GST）和NSF的Daniel K. Inouye Solar Telescope（DKIST）。非线性无线外推方法将用于获得耀斑生产活性区域的3D磁结构。这些外推将被GST和DKIST数据限制，然后将其与派生的光电流一起使用，作为输入到自适应网格改进中。然后，将将MHD代码的结果与耀斑丝带结构和动作的观察结果以及轻便后磁性拓扑结构进行比较。该奖项反映了NSF的法定任务，并通过使用基金会的智力优点和更广泛的影响评估标准来通过评估来表现出珍贵的支持。