Investigations of Star Clusters

星团研究

• 批准号: 8714608
• 负责人: Kyle Cudworth
• 金额: $ 8.6万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-12-15 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8714608&HistoricalAwards=false
• 关键词: Investigations; Star; Clusters

Dr. Cudworth, at the Yerkes Observatory of the University of Chicago, is conducting research on star clusters which primarily involves observational investigations of proper motions and photometric studies of the members of globular and open clusters. Star clusters are important for testing theories of stellar evolution, galactic evolution, and stellar dynamics. Clusters also contribute to the luminosity calibration for a variety of types of stars, as well as the distance scale of the Galaxy and the Universe. In all of these areas a criterion for membership of stars in the cluster is needed which is independent of theories of stellar evolution. Measurements of proper motions are used to derive cluster membership, study the internal dynamics of the clusters, and derive the cluster space velocities. Dr. Cudworth has a reputation for careful and accurate contributions in this area of fundamental astronomy.

卡德沃斯博士，在约克大学的耶基斯天文台， 芝加哥，正在进行研究的星星集群，主要是 涉及自行的观测研究， 球状星团和疏散星团成员的测光研究。 星星团对于检验恒星理论是很重要的 星系演化和恒星动力学。 集群 也有助于各种亮度校准 恒星的类型，以及银河系的距离尺度， 宇宙 在所有这些领域， 星团中的恒星数量是独立于 恒星演化理论 自行测量 用于导出集群成员关系，研究内部 动态的集群，并得出集群空间 速度 卡德沃斯医生以谨慎和 在基础天文学这一领域做出了重要贡献。