Tracing Large-Scale Structure in the Universe with An Improved Sample of Rich Galaxy Clusters of Known Redshifts

最近揭露的一个明显的超大规模的 宇宙微波背景的结构导致了新的 努力评估宇宙的结构。 的 该补助金支持的研究活动将 参与追踪这种结构。 丰富的星系团是 感兴趣的尺度。 最近的分析集群从 阿贝尔的（1958）和新的阿贝尔，科温，和Olowin（1989） 南方丰富的星团目录揭示了三个证据 维超聚类 然而，红移一直是 测量不到25%的这些集群， 目前的知识的三维分布， 这些集群具有一些不确定性。 这些不确定性将因此显著减少 工作，这将获得超过300个这些红移 集群，以便更深入，更完整和可靠 可用于大尺度结构的研究。

The recent revelation of apparent extremely large-scale structure in the cosmic microwave background has led to new efforts to evaluate the structure in the universe. The research activities to be supported under this grant will be involved in tracing out such structure. Rich clusters of galaxies are efficient samplers of the scales of interest. Recent analyses of clusters from Abell's (1958) and the new Abell, Corwin, and Olowin (1989) catalog of southern rich clusters reveal evidence of three dimensional superclustering. However, redshifts have been measured for less than 25% of these clusters, and the present knowledge of the three dimensional distribution of these clusters has some uncertainties. These uncertainties will be significantly reduced by this work, which will obtain redshifts of over 300 of these clusters, so that a deeper, more complete and reliable sample is available for studies of large-scale structure.