Galaxy Formation and the Oldest Stellar Systems

星系形成和最古老的恒星系统

• 批准号: 607-2013
• 负责人: Harris, William
• 金额: $ 2.33万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=543887
• 关键词: Galaxy; Formation; Oldest; Stellar; Systems

One of the most prominent frontier areas in astrophysics today is to understand the process of galaxy formation and early evolution: how do we uncover the sequence of events that changed the primordial gas emerging from the Big Bang into the distribution of galaxies we see around us today? My research program is directed at investigating the oldest stellar systems in large galaxies: globular star clusters and the oldest halo stars. As the first populations of stars to form during the history of galaxy formation, these systems of old stars give us uniquely detailed observational windows into that critical early era during which star formation and structure formation was the most rapid.

今天天体物理学最突出的前沿领域之一是了解星系形成和早期演化的过程：我们如何揭示将大爆炸产生的原始气体改变为我们今天看到的星系分布的事件序列？ 我的研究计划是针对大型星系中最古老的恒星系统：球状星星集群和最古老的晕星。 作为星系形成史上第一批形成的恒星，这些古老的恒星系统为我们提供了独特而详细的观测窗口，使我们得以进入星星形成和结构形成最迅速的关键早期时代。