Simulating Galaxies Across Reionization: A Multiwavelength View

模拟再电离过程中的星系：多波长视图

• 批准号: 1108700
• 负责人: Renyue Cen
• 金额: $ 59.72万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2017-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1108700&HistoricalAwards=false
• 关键词: Simulating; Galaxies; Across; Reionization; Multiwavelength

AST-1108700CenObservations indicate that the cosmological reionization history may be quite complex, and to understand at a fundamental level how the universe was reionized and what reionized it, requires a satisfactory understanding of the formation of galaxies during the reionization epoch. Current and future observations are, and will be, detecting many galaxies in the reionization epoch above redshift six, and interpreting this rich dataset will require a comprehensive theoretical framework for galaxies in halos of tens of millions to ten billion solar masses, constructed as much as possible ab initio and from first principles in the standard cold dark matter model. This research program will establish such a framework by carrying out ultra-high-resolution, cosmological, adaptive mesh refinement radiation-hydrodynamic simulations focusing on galaxies in the right mass range, combining a detailed physical treatment with sophisticated post-simulation analysis. The work will significantly advance the fields both of galaxy formation at high redshift and of cosmological reionization.These research activities will be integrated into the training of graduate and undergraduate students, and will feed into an effective outreach program that improves the scientific understanding of the general public about cosmological research. The demands of carrying out these simulations push technological advances in supercomputers and related hardware and software, and drive the development of national research infrastructure.

AST-11108700持续持续时间表明，宇宙学的回离历史可能非常复杂，并且要在基本层面上理解如何对宇宙进行回报，并将其电源进行了回归，需要令人满意的理解对校正期间星系的形成。 当前和将来的观察结果是，并且将在红移六上方的电离时期中检测到许多星系，并且解释这个丰富的数据集将需要一个全面的理论框架，用于在数以千计至一百万到一百万太阳能团体中的光环中的星系框架，并尽可能多地构建在标准的冷冰冷的深色深色深色深色模型中。该研究计划将通过进行超高分辨率，宇宙学，适应性网状辐射辐射流动力学模拟，以正确的质量范围内的星系，将详细的物理治疗与复杂的仿真分析相结合，建立了这样一个框架。 这项工作将大大推动高红移和宇宙学回报的星系形成的领域。这些研究活动将融入研究生和本科生的培训中，并将融入有效的外展计划中，以提高对宇宙学研究的科学理解。 进行这些模拟的需求推动了超级计算机以及相关硬件和软件的技术进步，并推动了国家研究基础设施的开发。