Modeling the Abundance and Distribution of the First Stars and Galaxies

宇宙中第一批恒星的形成影响着整个宇宙年龄中星系和星系团的生长。制作第一批恒星诞生和星系成长的计算机模型是非常困难的，因为模型必须涵盖小到恒星，大到星系团的大小。这个项目将使用一种方法，它混合了两种建模技术，以更好地涵盖范围的大小。然后，它将提供有关早期宇宙的预测，这些预测可以用现代望远镜进行测试。它还将利用这些模型开发天文馆表演。这些节目将用于公共天文馆和外展活动。该项目将开发一种混合方法来模拟宇宙中第一颗Pop III恒星的诞生。从小尺度的半分析方法开始，使用AI开发星星形成的快速仿真，以纳入大尺度流体动力学宇宙学模拟。这些模拟将用于预测即将到来的观测，重点是中性氢的红移21厘米线和来自第一批恒星的黑洞残余物。该项目还将重新启动“科学中的女孩”，这是一项年度活动，让对科学感兴趣的当地初中女孩参加科学活动，并与成功的女科学家一起参加小组讨论。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The formation of the first stars in the universe influence the growth of galaxies and galaxy clusters throughout the age of the universe. It is very difficult to make computer models of the birth of the first stars and growth of galaxies because the models must cover sizes as small as stars and as large as galaxy clusters. This project will use an approach which blends two modeling techniques to better cover the range of sizes. It will then provide predictions about the early universe that can be tested with modern telescopes. It will also develop planetarium shows using these models. These shows will be used at public planetariums and in outreach activities.This project will develop a hybrid approach to modeling the birth of the first Pop III stars in the universe. Starting with a semi-analytic approach at small scales and using AI to develop a rapid emulation of star formation to incorporate in large scale hydrodynamic cosmological simulations. The simulations will be used to make predictions for upcoming observations with a focus on the redshifted 21-cm line of neutral hydrogen and growing black hole remnants from the first stars. The project will also restart "Girls in Science", an annual event where local junior high school girls interested in science participate in science activities and attend a panel discussion with successful women scientists.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.