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

这一奖项给卡梅基梅隆大学促进宇宙学研究使用大型新的计算资源命名为蓝色沃茨最近部署和运行的伊利诺伊大学厄巴纳尚潘。它提供差旅资金来支持主要研究者和蓝色沃茨项目团队之间的技术协调。该研究小组将对明亮的qasar形成进行流体动力学模拟，该形成是从宇宙中第一个超大质量黑洞演变而来的。 模拟将在整个大质量宇宙体积中使用完整的质量和空间分辨率。 最初的模拟将发展到红移z= 4，而随后的第二个较小的模拟将发展到重新移动z = 0。 这些预计将是最高分辨率的SPH（平滑粒子流体动力学）模拟在低红移。 这些模拟代表了对基本宇宙学问题的理解和大规模计算前沿的有效算法方法的质的进步。项目团队包括早期职业研究人员。 由此产生的数据和用于执行这些高分辨率模拟的软件都将在计算机上可用，从而允许其他研究人员进行相关的后续高分辨率研究。 该软件被纳入现有的和已经高度使用的公开可用的GADGET应用程序。 可视化和其他材料形式的数据产品将被纳入本科和高中阶段的广泛和持续的推广计划，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.