An HI Survey of Clusters in the Local Universe

对本地宇宙中星团的 HI 调查

• 批准号: 0098249
• 负责人: Jacqueline van Gorkom
• 金额: $ 24万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0098249&HistoricalAwards=false
• 关键词: HI; Survey; Clusters; Local; Universe

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.

货车Gorkom，Jacqueline“An HI Survey of Clusters in the Local Universe“AST-0098249本项目将使用VLA（已授权460小时）在中性氢中对附近的12个星系团进行成像，并使用深层光学成像和光谱学补充数据。作为中性氢测量的副产品，将获得深射电连续图像。星系团的整个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部区域和密集的集群核心。所选星系团都有不同程度的动力学弛豫，有些包含星暴和星暴后星系，大多数具有中心X射线源。目标是研究星系从低密度外围区域进入星系团致密核心的演化过程，并评估星系团的动力学状态。