Evolution of Structure in the Universe from z=30 to z=3

这项研究的目标是模拟宇宙结构形成的历史，从第一代到最高的红移，在那里可以观察到星系和星系间介质。这将使用流体动力学模拟（由CO-I开发）来改进半解析模型（由PI开发）。这项工作需要PI可以使用的非常强大的计算设备。大爆炸之后，宇宙从一个近乎平滑的初始状态开始膨胀。随着宇宙年龄的增长，由于重力的影响，物质密度的微小变化越来越大。最终，密度高于平均水平的区域坍塌并形成束缚物体。这个项目将开发计算机模型，用来研究在这个过程中形成的第一代恒星和星系的性质。这些计算机模型将在未来十年内用下一代的地面和太空望远镜进行测试

AST-0071019LoebThe goals of this research are to simulate the history of cosmic structure formation from the first generation to the highest redshifts where galaxies and the intergalactic medium are observed. This will be done using hydrodynamic simulations (developed by the CO-I) to improve semi-analytic models (developed by the PI). The work requires very powerful computational facilities which are available to the PI.Following the Big Bang, the universe started its expansion from a nearly smooth initial state. As the universe aged, small variations in the density of matter grew due to the effect of gravity. Eventually, regions denser than average collapsed and formed bound objects. This project will develop computer models with which to study the nature of the first generation of stars and galaxies that formed as a result of this process. These computer models will be tested over the coming decade with the next generation of telescopes, both from the ground and from space.***