Fundamental Tests of Large Scale Cosmology

大规模宇宙学的基本测试

• 批准号: 1615997
• 负责人: Michael Blanton
• 金额: $ 55.93万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-08-15 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1615997&HistoricalAwards=false
• 关键词: Fundamental; Tests; Large; Scale; Cosmology

This program will study the clustering properties of galaxies with the primary goal of testing dark energy models. "Dark energy" is the name given to the mysterious cause of the accelerating expansion of the universe. Broader impacts include training of graduate students. In addition, the PI will work on improvements and extensions of the existing Sloan Digital Sky Survey-IV Plates for Schools program. The simulation and mock catalog tools developed will be publicly released and have application to other science investigations using several existing and future spectroscopic sky surveys. The software developed for the analysis of multiple dark energy and modified gravity models will be publicly released. The investigators will use eBOSS galaxy survey data and produce mock galaxy catalogs to examine 3D clustering statistics with goals including distinguishing among dark energy models, testing statistical homogeneity with the observed large-scale structure, improving systematic weights, and improving the realism of mock catalogs by including tidal fields.

该计划将研究星系的聚集特性，主要目标是测试暗能量模型。“暗能量”是宇宙加速膨胀的神秘原因的名称。更广泛的影响包括培训研究生。 此外，PI将致力于改进和扩展现有的斯隆数字天空调查-IV学校计划。开发的模拟和模拟目录工具将公开发布，并应用于使用几个现有和未来的光谱天空调查的其他科学调查。为分析多种暗能量和修改后的引力模型而开发的软件将公开发布。研究人员将使用eBOSS星系调查数据并制作模拟星系目录，以检查3D聚类统计数据，目标包括区分暗能量模型，用观察到的大尺度结构测试统计均匀性，提高系统权重，以及通过包括潮汐场来提高模拟目录的真实性。