Globular Clusters, Stellar Collisions, Dark Matter Halos, and the Age of the Universe Problem

球状星团、恒星碰撞、暗物质晕和宇宙年龄问题

• 批准号: 9420204
• 负责人: Michael Bolte
• 金额: $ 14.8万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9420204&HistoricalAwards=false
• 关键词: Globular; Clusters; Stellar; Collisions; Dark

9420204 Bolte Dr. Bolte's observational research project addresses four problems: 1) the absolute age of the oldest globular star clusters in the Galaxy, 2) the age dispersion among the galactic globular clusters and for the dwarf spheroidal galaxies that are companions to the Milky Way, 3) the low-mass end of the Population II star mass/luminosity function, and 4) the nature of blue straggler stars in globular clusters and the frequency of their occurrence as a function of stellar density and velocity dispersion within the individual clusters and for different clusters.

小行星9420204 Bolte博士的观察研究项目解决了四个问题：1）银河系中最古老的球状星星团的绝对年龄; 2）银河系球状星团之间以及与银河系相伴的矮球状星系的年龄分散; 3）星族II星星质量/光度函数的低质量端;（4）球状星团中蓝离散星的性质，以及它们出现的频率作为单个星团内和不同星团内恒星密度和速度色散的函数。