Magnetohydrodynamic wave interaction with flows in the Sun's chromosphere

太阳是距离我们最近的恒星，对地球上的生命和科技有直接影响。空间和地面仪器已证实其大气层中普遍存在磁流体动态波。它们提供了对太阳物理学中尚未回答的主要问题的洞察。MHD波能够将能量和机械动量从对流区转移到日冕和日光层。它们通常与空间天气活动有关，例如太阳耀斑和日冕物质抛射。由于MHD波理论的巨大成功，我们拥有一种诊断工具来提取太阳大气中物理条件的详细的、局部的知识。英国，尤其是华威大学，在这一领域是国际公认的领导者。该项目采用了一种结合了观测分析、理论和数值模拟的整体方法。随着新的地基丹尼尔·K·井上太阳望远镜(DKIST)的落成，以及其前所未有的分辨率，人们重新关注色球动力学。这个项目将研究磁流体波在色球结构中的发生，例如耀斑带和漩涡。耀斑带是由于较高层的磁重联事件而产生的色球加热区域。它们伴随着各种各样的波活动，例如横跨条带的快速波，以及向上传播的声波冲击。特别是，该项目将侧重于流入对波浪动力学强度以及能量和动量输送到上层色球的作用。

The Sun is our nearest star with a direct impact on life and technology on Earth. Space-born and ground-based instruments have confirmed the ubiquitous presence of magnetohydrodynamic (MHD) waves throughout its atmosphere. They provide insight into the major unanswered questions of solar physics. MHD waves are capable of transferring energy and mechanical momentum from the convection zone into the corona and heliosphere. They are often associated with space weather activity such as solar flares and coronal mass ejections. Owing to the great success of MHD wave theory, we possess a diagnostic tool to extract detailed, local knowledge of physical conditions in the solar atmosphere. The UK, and the University of Warwick in particular, are internationally recognised leaders in this field. This project lends itself to a holistic approach that combines observational analysis, theoretical and numerical modelling.With the recent inauguration of the new ground-based Daniel K. Inouye Solar Telescope (DKIST), with its unprecedented resolution, there is a renewed focus on chromospheric dynamics. This project will study the occurrence of MHD waves in chromospheric structures such as flare ribbons and swirls. Flare ribbons are chromospheric regions of heating due to magnetic reconnection events higher-up. They are accompanied by a variety of wave activity such as fast waves that ripple across ribbons as well as acoustic shocks propagating up. In particular, the project will focus on the role of inflows on the strength of wave dynamics and transport of energy and momentum into the upper chromosphere.