Astrometric Research in the Southern Hemisphere

南半球的天体测量研究

• 批准号: 9217902
• 负责人: William Van Altena
• 金额: --
• 依托单位: Yale Southern Observatory, Inc.
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217902&HistoricalAwards=false
• 关键词: Astrometric; Research; Southern; Hemisphere

Astrometric Research in the Southern Hemisphere. Dr. Van Altena will continue the second epoch observations of the Southern Proper Motion Program (SPM) and the measurement, analysis, and interpretation of the absolute proper motions that are the result of the SPM. A deep probe of the structure of our Galaxy in the direction of the South Galactic Pole (SGP) to very faint magnitudes will provide needed information on the relative contributions of the different galactic components to the spatial, kinematic, and metallicity distributions of the stars. The development of a detailed interpetive model of the Galaxy to describe the observed distributions will help to combine the results of the SPM, the deep SGP study, and the results of other investigations into a coherent picture of the Galaxy.

南半球的天体测量学研究。Van Altena博士将继续进行南方自行计划(SPM)的第二纪元观测，并对作为SPM结果的绝对自行进行测量、分析和解释。对我们银河系在南极点(SGP)方向到非常微弱的星等方向的结构进行深入探测，将提供关于不同星系组成部分对恒星的空间、运动学和金属丰度分布的相对贡献的必要信息。开发一个详细的银河系迭代模型来描述观测到的分布，将有助于将SPM的结果、深入的SGP研究和其他研究的结果结合在一起，形成一个连贯的银河系图景。