An HI Survey of Clusters in the Local Universe

“局部宇宙星系团的HI调查”st -0098249这个项目将使用VLA在中性氢中对12个附近的星系团进行成像（已获得460小时），并使用深光学多色成像和光谱学补充数据。作为中性氢探测的副产品，将获得深射电连续体图像。整个星团的体积将被探测到两个阿贝尔半径。这项工作将同时研究低密度的外围区域和密集的星团核心。所选择的星团处于不同程度的动力学松弛状态，有些包含星暴和星暴后星系，大多数星团有一个中心X射线源。目标是研究星系从低密度的外围区域进入密集的星系团核心时的演化，并评估星系团的动态状态。

van Gorkom, Jacqueline"An HI Survey of Clusters in the Local Universe"AST-0098249This project will image twelve nearby clusters of galaxies in neutral hydrogen using the VLA (460 hours have been granted), and supplement the data with deep optical multicolor imaging and optical spectroscopy. As a byproduct of the neutral hydrogen survey, deep radio continuum images will be obtained. The entire volume of the clusters will be probed out to two Abell radii. The work will simultaneously study the low density outer regions and the dense cluster cores. The selected clusters are in varying degrees of dynamical relaxation, some contain starburst and post starburst galaxies, and most have a central X ray source. The goal is to study the evolution of galaxies as they travel from the low density outer regions into the dense cores of clusters and to assess the dynamical state of the clusters.