Parallaxes and Proper Motions of Northern and Southern Stars

南北恒星的视差和固有运动

• 批准号: 9314094
• 负责人: Philip Ianna
• 金额: $ 24万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314094&HistoricalAwards=false
• 关键词: Parallaxes; Proper; Motions; Northern; Southern

9314094 Ianna Parallaxes and proper motions of stars form the foundation for the cosmic distance scale and consequently the foundation of our understanding such diverse topics as the evolution of stars, the distances to other galaxies and the age of the universe. These investigators are conducting the only long term parallax and proper motion program for stars in the southern hemisphere. In the continuation of this work, the parallaxes of white dwarf stars, subdwarf stars and low luminosity cool main sequence stars will be emphasized. ***

9314094 Ianna视差和恒星的自行构成了宇宙距离尺度的基础，因此也是我们理解恒星演化、到其他星系的距离和宇宙年龄等各种主题的基础。 这些研究人员正在对南半球的恒星进行唯一的长期视差和自行计划。 在这一工作的继续中，将着重研究白色矮星、亚矮星和低光度冷主序星的光散射。 ***