Observational and Theoretical Cosmology and Related Topics

观测和理论宇宙学及相关主题

• 批准号: 8618257
• 负责人: James Gunn
• 金额: $ 52.98万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8618257&HistoricalAwards=false
• 关键词: Observational; Theoretical; Cosmology; Related; Topics

A broad set of research projects concerning galaxies, quasars, gravitational lenses, clusters of galaxies, and globular star clusters will be carried out. Although substantial theoretical research will be done, the primary thrust is observational. The theoretical programs are attempts to understand, model, or predictbasic observational results. Some instrumental enhancements uniting all of these programs have improved our understanding of the nature, origin, and evolution of the fundamental classes of extragalactic objects above. It is hoped and believed that such an improved understanding will provide critical insights into the properties of the Universe as a whole, that is the cosmology of the Universe. The specific projects are intended to provide 1) a detailed model for infall dominated galaxy formation, 2) a direct determination of the nature of galaxy evolution in faint clusters, 3) a statistically useful sample of gravitational lenses, 4) detailed observational studies of known lens systems, 5) a detailed study of the properties of distant clusters of galaxies, 6) a determination of the quasar luminosity-redshift distribution near the cutoff, 7) a clear determination of the nature of the remarkable quasar pair 1146+111B, C 8) detailed dynamical and population models for several well studied globular clusters, 9) a sample of faint variable objects located by an automated survey, 10) an elucidation of several detailed aspects of the internal dynamics and interactions of galaxies, and 11) a model of the effects of Malmquist biases on the extragalactic distance scale and determinations of peculiar velocity fields.

将开展一系列关于星系、类星体、引力透镜、星系团和球状星团的研究项目。虽然将进行大量的理论研究，但主要的推动力是观测。理论程序是理解、模拟或预测基本观测结果的尝试。将所有这些计划结合在一起的一些仪器增强提高了我们对上面的河外天体基本类别的性质、起源和演化的理解。人们希望并相信，这种改进的理解将提供对宇宙作为一个整体的属性的批判性见解，即宇宙的宇宙学。这些具体项目的目的是提供1)落入控制星系形成的详细模型，2)直接确定微弱星系团中星系演化的性质，3)引力透镜的统计有用样本，4)已知透镜系统的详细观测研究，5)遥远星系团的详细研究，6)确定截止点附近的类星体光度-红移分布，7)明确确定引人注目的类星体对1146+111B的性质，C8)几个研究得很好的球状星团的详细的动力学和粒子模型，9)通过自动测量定位的微弱可变物体的样本，10)阐明星系内部动力学和相互作用的几个详细方面，11)Malmquist偏差对河外距离尺度和特殊速度场测定的影响的模型。