Preconditioning the solar chromosphere: DKIST critical science

科罗拉多大学的 Daniel K. Inouye 太阳望远镜 (DKIST) 批判科学项目的目标是了解声波对太阳低层大气的作用。该项目将研究波浪如何被激发以及大气条件如何改变动力学。这将使用两种不同的代码进行研究，其结果将相互比较并用于为 NSF 的 DKIST 设计实验。该项目支持美国国家科学基金会通过检查太阳中未被研究的一层——色球层来促进科学进步的使命。更广泛的影响包括对研究生和早期职业科学家的支持。通过 CU Boulder 的公开演讲系列计划使用生成的 3D 数据进行外展演讲。研究结果还将提供给菲斯克天文馆和自然、环境、科学与技术工作室。该项目将使用 DKIST 观测的模拟和正演模型来研究声波在太阳色球层中的作用。将检查两个 3D 辐射磁流体动力学代码 MANCHA 和 Bifrost 的结果，以确定声波激发事件和大气预处理如何改变色球层的热力学和电离状态。将对结果的观测影响进行评估，并将构建 DKIST 具体观测的前向模型，以指导提交给 DKIST 的观测提案的实验设计。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。

The goal of this Daniel K. Inouye Solar Telescope (DKIST) Critical Science project from the University of Colorado is to understand the role of sound waves on the lower atmosphere of the sun. This project will examine how the waves are excited and how the conditions in the atmosphere change the dynamics. This will be studied using two different codes, whose outcomes will be compared with each other and be used to design an experiment for NSF's DKIST. This project supports NSF's mission to promote the progress of science by examining an understudied layer of the sun - the chromosphere. The broader impacts include support for a graduate student and an early career scientist. Outreach talks using the 3D data generated are planned through CU Boulder's public talk series. The results would also be made available to the Fiske Planetarium and the Nature, Environment, Science & Technology studio. This project will use simulations and forward models of DKIST observations to examine the role of acoustic waves in the solar chromosphere. The results of two 3D radiative magnetohydrodynamic codes, MANCHA and Bifrost, will be examined to determine how acoustic wave excitation events and atmospheric preconditioning change the thermodynamics and ionization state of the chromosphere. The results will be assessed for observational implications and forward models of DKIST specific observations will be constructed to guide experiment design for an observing proposal to be submitted to DKIST.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.