MODELLING THE RADIATIVE ISM IN MOVING MESH SIMULATIONS

该项目将着眼于改善“Arepo”移动网格代码中的辐射传输，然后使用这些新技术来探索完整星系尺度模拟的“放大”中的星系团形成。第一项任务将是包括一个粗略的处方，以处理我们的星团形成模拟中新形成恒星的气体和尘埃的加热。这将涉及修改现有的TreeCol算法，以获得最接近的“汇粒子”的柱密度。然后，Andrew将研究如何改进现有的TreeCol算法，将其修改为使用查找表。这应该比我们当前的实现速度快大约3倍。博士学位的科学将集中在辐射反馈对集群形成团块的组装的影响，以及这反过来如何影响母云的演变。星系团的形成将在整个银河系的背景下进行研究，充分利用Arepo的移动网格计划的适应性。安德鲁将能够研究银河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.