REU: Studies in Gravitational Instability

REU：重力不稳定性研究

• 批准号: 8911327
• 负责人: Adrian Melott
• 金额: --
• 依托单位: University of Kansas Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-01-01 至 1992-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911327&HistoricalAwards=false
• 关键词: REU; Studies; Gravitational; Instability

One of the major problems in modern cosmology is understanding how structure arose in the expanding universe from a very smooth early state. This is generally thought to be the result of gravity. This project obtains new understandings of the development of structure by gravity from various kinds of initial conditions which may have existed in the early universe The investigators develop and apply nonlinear mathematical approximation methods as well as computer simulations of the formation of structure. They concentrate on the further development of statistical tests which can be used to objectively compare computer models to astronomical data.

现代宇宙学的主要问题之一是理解结构是如何在膨胀的宇宙中从一个非常光滑的早期状态产生的。这通常被认为是重力的结果。该项目从早期宇宙中可能存在的各种初始条件中对重力作用下结构的发展获得了新的认识。研究人员开发并应用了非线性数学近似方法以及结构形成的计算机模拟。他们集中精力进一步发展统计测试，这些测试可用于客观地将计算机模型与天文数据进行比较。