Clusters of Galaxies and the Microwave Background Radiation

这个项目是研究星系团与宇宙微波背景辐射的相互作用。我们将进行理论计算和一系列的观测。首席研究员主要负责Sunyaev-Zel‘dovich效应存在的观测证据，该效应预测由于星系团的影响背景辐射中的微小不规则性。这些观察结果及其解释是非常困难的，这位研究员被广泛认为是这些研究的主要专家。如果成功，这项工作将带来对星系团组成的更多了解，以及一种确定哈勃常数的新方法。

This program is a study of the interaction of clusters of galaxies with the cosmic microwave background radiation. Both theoretical calculations and a series of observations will be made. The principle investigator has been largely responsible for the observational evidence for the existence of the Sunyaev- Zel'dovich effect, which predicts small irregularities in the background radiation due to the effect of clusters of galaxies. These observations and their interpretation are very difficult, and this investigator is widely regarded as the leading expert on these studies. If successful, this work will lead to a greater knowledge of the constituents of clusters of galaxies, and a new method of determining the Hubble constant.