Reionization and First Stars

再电离和第一颗恒星

• 批准号: 0407176
• 负责人: Renyue Cen
• 金额: $ 40.65万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-15 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0407176&HistoricalAwards=false
• 关键词: Reionization; First; Stars; Reionization; First; Stars

AST-0407176CenRecent observations from the Wilkinson Microwave Anisotropy Probe and the Sloan Digital Sky Survey together suggest that the universal reionization may be prolonged and much more complex than previously thought. This research will systematically study all of the astrophysical processes relevant to the universal reionization and heating process, to set up a working framework for proper interpretation of major observations of the high redshift universe. Semi-analytic methods and state-of-the-art hydrodynamical and radiation hydrodynamical simulations will be used both for this, and to focus on gaining a fuller understanding of star formation at high redshift. Informed comparison between observations and theoretical predictions should help with working out the correct cosmological model. This research will feed into a continuing outreach program intended to enhance the scientific understanding of cosmological research by the general public. Results will be visualized and presented through various channels, including planetaria and public television. The technological demand of the simulations will also test advances in high performance computing.

Wilkinson微波各向异性探针和Sloan Digital Sky调查的AST-0407176CENRECTECENRECTECT观察结果表明，普遍的电源可能延长，并且比以前认为的要复杂得多。 这项研究将系统地研究与通用电源和加热过程相关的所有天体物理过程，以建立一个工作框架，以正确解释对高红移宇宙的主要观察结果。 半分析方法以及最先进的水动力学和辐射流体动力学模拟将同时用于此，并专注于在高红移时获得对恒星形成的全面了解。 观察和理论预测之间的知情比较应有助于制定正确的宇宙学模型。这项研究将涉及一项持续的外展计划，旨在增强公众对宇宙学研究的科学理解。 结果将通过各种渠道进行可视化和呈现，包括行星和公共电视。 模拟的技术需求还将测试高性能计算的进步。