Better Measurements and Analysis of Peculiar Motions of Galaxies

更好地测量和分析星系的特殊运动

• 批准号: 9220052
• 负责人: Alan Dressler
• 金额: $ 17.21万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9220052&HistoricalAwards=false
• 关键词: Better; Measurements; Analysis; Peculiar; Motions

Measurements of the peculiar motions of galaxies are proving to be one of our most direct probes of the large-scale distribution of matter in the local universe. This information bears on a variety of issues, including the amount and nature of dark matter and the birth and evolution of structure in the universe in the context of the big bang model. The research to be conducted with this grant will involve an observational program to measure improved distances to galaxies. This will provide peculiar motions of unprecedented accuracy for a sample of hundreds of galaxies spread over a significant volume of space. The availability of such data should allow a much more detailed and relatively bias-free map of the distribution of dark matter. Such a map is essential for evaluating the ability of numerical models of structure formation to simulate the real universe, and, through comparison with maps of the distribution of luminous galaxies, instructive as to the process of galaxy formation. The Principal Investigator is highly regarded for his research in this area.

对星系特殊运动的测量证明， 是我们对大规模分布的最直接的探测器之一 在本机宇宙中的物质。 这一信息关系到 各种问题，包括暗物质的数量和性质 以及宇宙结构的诞生和演化 大爆炸模型的背景。 将进行的研究 这项拨款将包括一个观察项目， 改善了与星系的距离。 这将提供特殊的 对数百个样本进行了前所未有的精确运动， 星系遍布在相当大的空间中。 的 这些数据的可用性应允许更详细， 相对无偏差的暗物质分布图。 这样的地图对于评估数字化的能力是必不可少的。 模拟真实的宇宙的结构形成模型， 通过与发光分布图的比较， 星系，对星系形成的过程有指导意义。 首席研究员因其在 这方面