Better Measurements and Analysis of Peculiar Motions of Galaxies

对星系特殊运动的测量被证明是我们对局部宇宙中物质大规模分布的最直接探测之一。这些信息涉及各种问题，包括暗物质的数量和性质，以及在大爆炸模型的背景下宇宙结构的诞生和演化。用这笔赠款进行的研究将涉及一项观测计划，以测量到星系的更长距离。这将为分布在相当大的空间中的数百个星系的样本提供前所未有的精确度的特殊运动。这些数据的可获得性应该会使暗物质的分布图变得更加详细和相对无偏见。这样的地图对于评估结构形成数值模型模拟真实宇宙的能力是必不可少的，并通过与发光星系分布图的比较，对星系形成过程具有指导意义。首席调查员因其在这一领域的研究而受到高度评价。

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.