Color Evolution of Distant Cluster Galaxies

AST-0307508 Schomberg这个项目是对遥远星系团中的红色和蓝色星团进行窄带、连续的颜色测量，使用专门设计的过滤系统来解决年龄和金属丰度的影响，并区分星团蓝色星团中的平均恒星形成率。这使得对星系团星系的颜色演化问题进行双管齐下的攻击成为可能。随着红色种群的被动演化，可以估计星系聚集的时间，而分离两个蓝色分量，通过分离星暴的贡献，将解决它们的形成时期。结合现有的发射线、运动学和形态学工作，这项研究将提供过去80亿年星系团中星系演化的完整图景。观测宇宙学是本科生水平的一个热门的子领域，也为整个社会提供了一个哲学框架，这项工作将有助于理解它。

AST-0307508SchombertThis project is a narrow band, continuum color survey of the red and blue populations in distant clusters of galaxies, using a specially designed filter system to resolve age and metallicity effects and distinguish the mean star formation rates in the cluster blue population. This enables a two-pronged attack on the question of the color evolution of cluster galaxies. Following the passive evolution of the red population allows an estimate of the time of galaxy assembly, while isolating two blue components, by segregating a starburst contribution, will resolve their epoch of formation. Combined with existing emission line, kinematic, and morphological work, this research will provide a complete picture of galaxy evolution in clusters for the past eight billion years. Observational cosmology is a popular subfield of study at the undergraduate level, as well as providing a philosophical framework for society as a whole, and this work will contribute to its understanding.***