Galaxy evolution in the distant universe

遥远宇宙中的星系演化

• 批准号: 262032-2012
• 负责人: Willis, Jon
• 金额: $ 2.33万
• 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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=525467
• 关键词: Galaxy; evolution; distant; universe

A galaxy cluster is very much like a galaxy city - a true urban environment where galaxies co-exist at much higher density than their rural counterparts in non-cluster (labelled "field") locations. Galaxy clusters pose a number of puzzling questions: how have they grown more massive with time and by searching for distant clusters can we observe their growth directly? In addition, how have the cores of rich galaxy clusters come to be dominated by populations of bright, red elliptical galaxies (as opposed to the blue, spiral-rich field)?

一个星系团非常像一个星系城市--一个真正的城市环境，星系以比非星系团（标记为“场”）位置的乡村星系高得多的密度共存。星系团提出了许多令人困惑的问题：它们是如何随着时间的推移变得越来越大的，通过寻找遥远的星系团，我们可以直接观察它们的成长吗？ 此外，丰富的星系团的核心是如何被明亮的红色椭圆星系（与蓝色的螺旋丰富的领域相反）所主导的？