The structure, formation and evolution of galaxies in the local universe

本地宇宙中星系的结构、形成和演化

• 批准号: 327251-2009
• 负责人: Cote, Patrick
• 金额: $ 1.82万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=481648
• 关键词: structure; formation; evolution; galaxies; local

While cosmological models of structure formation now show excellent agreement with observations on the largest spatial scales, there remain serious discrepancies on the scales of galaxies and smaller. Unfortunately, a detailed understanding of the mechanisms by which galaxies were assembled into their present state ultimately hinges on astrophysical processes that are still poorly understood: i.e., gas cooling, star formation, and feedback from stars and active galactic nuclei.

尽管结构形成的宇宙学模型与对最大空间尺度的观察表现出了极好的一致性，但在星系的尺度上仍然存在严重的差异。不幸的是，对星系被组装到其目前状态的机制的详细理解最终取决于仍然知之甚少的天体物理过程：即气体冷却，恒星形成以及来自恒星和活跃的银河系核的反馈。