Petascale Cosmology with Gadget: Modeling the formation of the First Quasars with Blue Waters

这项授予Carmegie Mellon大学的奖项促进了宇宙学研究，使用了伊利诺伊大学厄巴纳香槟分校最近部署和运营的名为Blue Waters的大型新计算资源。它提供差旅资金，以支持主要调查员和Blue Waters项目小组之间的技术协调。研究小组将对从宇宙中第一个超大质量黑洞演化而来的明亮的Qasar层进行流体动力学模拟。这些模拟将在整个大质量宇宙体积中使用全质量和空间分辨率。初始模拟将演变为红移z=4，而第二个后续较小的模拟将演变为重新移位z=0。预计这将是在低红移条件下进行的最高分辨率SPH(平滑粒子流体动力学)模拟。这些模拟代表了在理解基本宇宙学问题和大规模计算前沿的有效算法方法方面的质的进步。项目团队包括早期职业研究人员。结果数据和用于执行这些高分辨率模拟的软件都将公开可用，从而允许其他研究人员随后进行相关的高分辨率研究。该软件被整合到现有的、已经高度使用的公开可用的小工具应用程序中。可视化和其他材料形式的数据产品将被纳入本科生和高中水平的广泛和正在进行的推广计划中，促进对大规模计算研究和天文学的理解和兴趣。

This award to Carmegie Mellon University facilitates cosmology research using the large new computational resource named Blue Waters recently deployed and operated by the University of Illinois at Urbana Champaign. It provides travel funds to support technical coordination between the principal investigators and the Blue Waters project team. The research team will conduct hydrodynamic simulations of bright qasar formations which evolved from the first supermassive black holes in the universe. The simulations will use full mass and spatial resolution throughout the entire massive cosmological volume. The initial simulation will evolve to redshift z= 4, while the second subsequent smaller simulation will evolve to reshift z = 0. These are expected to be the highest resolution SPH (Smoothed-Particle Hydrodynamics) simulations performed at low redshift. These simulations represent qualitative advances both in understanding of fundamental cosmology questions and efficient algorithmic approaches at the frontiers of large scale computation.The project team includes early career researchers. Both the resulting data and the software used to perform these high resolution simulations will be publically available allowing related subsequent high resolution studies by other researchers. The software is incorporated into the existing and already highly used publicly available GADGET application. Data products in the form of visualizations and other materials will be incorporated into expansive and ongoing outreach programs at undergraduate and high school levels, advancing understanding and interest in both large scale computational research and astronomy.