MODELLING THE RADIATIVE ISM IN MOVING MESH SIMULATIONS

这个项目将着眼于改善“Arepo”移动网格代码中的辐射传输，然后使用这些新技术在全星系尺度的模拟中探索星系团的形成。第一个任务将是在我们的星团形成模拟中包括一个粗略的处方来处理来自新形成的恒星的气体和尘埃的加热。这将涉及修改现有的TreeCol算法，以获得距离最近的“下沉颗粒”的柱密度。然后，Andrew将考虑改进现有的TreeCol算法，将其修改为使用查找表。这应该会使我们当前的实现速度提高大约3倍。然后，PHD中的科学将专注于辐射反馈对形成星系团的集合体的影响，以及这反过来如何影响母云的演化。星团的形成将在全银河系的背景下进行研究，充分利用Arepo的移动网格方案的适应性。然后，安德鲁将能够研究星系环境如何影响星系团的形成。

This project will look at improving the radiation transport in the "Arepo" moving-mesh code, and then use these new techniques to explore cluster formation in 'zoom-ins' of full galaxy-scale simulations. The first task will be to include a rough prescription to treat the heating of the gas and dust from newly-formed stars within our cluster formation simulations. This will involve modifying the existing TreeCol algorithm to obtain column densities to the nearest 'sink particles'. Andrew will then look at improving the existing the TreeCol algorithm, by modifying it to use a look-up table. This should provide a factor of roughly 3 in speed up from our current implementation. The science in the PhD will then be focused on the affect that radiative feedback has on the assembly of cluster-forming clumps and how this in turn affects the evolution of the parent cloud. The cluster formation will be studied in the full galactic context, exploiting the full adaptability of Arepo's moving mesh scheme. Andrew will then be able to study how the galactic environment affects the formation of clusters.