Collaborative Project: An Investigation of the Formation andEvolution of Globular Cluster Systems and their Host Galaxies

AST0406891PI：Stephen ZepfInst：密歇根州立大学在这项合作中，Stephen Zepf博士和Keith Ashman博士将通过地面观测研究和半解析理论模型研究球状星系团系统及其宿主星系的形成和演化。该计划将专注于两个领域的研究。第一个是通过广域成像改进球状星团的总数、颜色和空间分布的确定，并开发理论工具来根据这些数据限制贫金属球状星团形成的地点。第二个领域是通过使用光学到近红外颜色、光学光谱学以及发展星系和星系团形成的半分析模型，对球状星系团种群的年龄和金属性质进行综合的观测和理论研究。该计划将通过将各级学生纳入研究计划、将研究纳入入门课程以及通过参与面向公众的外联计划来促进教学、培训和学习。

AST 0406891PI: Stephen ZepfInst: Michigan State UniversityIn this collaborative work, Drs. Stephen Zepf and Keith Ashman will study the formation and evolution of globular cluster systems and their host galaxies through ground based observational studies and semi-analytical theoretical models. The program will focus on two areas of research. The first of these is to improve the determination of the total number, color, and spatial distribution of globular clusters through wide-field imaging and to develop theoretical tools to constrain the sites of metal-poor globular cluster formation from these data. The second area is a combined observational and theoretical study of the ages and metallicities of globular cluster populations through the use of optical to near-IR colors, optical spectroscopy and the development of semi-analytical models of galaxy and cluster formation. The program will promote teaching, training, and learning by including students at all levels into the research program, by incorporating research into introductory courses and through involvement in outreach programs for the public.