Star Clusters: Observing Stellar Evolution

星团：观察恒星演化

• 批准号: 8818360
• 负责人: Kenneth Janes
• 金额: --
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-15 至 1991-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8818360&HistoricalAwards=false
• 关键词: Star; Clusters; Observing; Stellar; Evolution

Typically stars are born in clusters of a few hundred member stars or more. The stars have a range of masses and they evolve at different rates, depending on their masses and composition. Hence, by observing members of star clusters, the rate of evolution of stars can be determined. The Principal Investigator proposes to observe a number of star clusters in our Galaxy, both old and young. His data will provide valuable input into making comparisons between the sun, which is approximately 4.5 billion years old, and the evolutionary stages of the member stars in those clusters.

典型的恒星诞生于几百个成员恒星或更多的星团中。恒星有一系列的质量，它们以不同的速度演化，这取决于它们的质量和组成。因此，通过观测星星团的成员，可以确定恒星的演化速率。首席研究员建议观察银河系中的一些星星星团，既有古老的，也有年轻的。他的数据将为比较大约45亿年前的太阳和这些星团中成员恒星的演化阶段提供有价值的信息。