报告题目：Evolution of the star formation and gas content in galaxies through cosmic time

　　报 告 人：Emanuele Daddi 博士 (Commissariat à l'énergie atomique et aux énergies alternatives)

　　摘    要：I will discuss recent observational advances into the mapping and understanding of the assembly of galaxies through cosmic time, with particular focus on the high cosmic noon period from z=1 to 3, when the star formation rate density in galaxies peaked. A simple scenario is emerging in which gas fractions as regulated by intergalactic inflows drive the rise of galaxy activity towards high redshifts, including star formation and AGN. A small population of strong bursts is necessary to account for the properties of the most bolometrically luminous systems. While this simple and promising scenario is still to be fully validated at z<2-3, at even higher redshifts a global empirical mapping of galaxy evolution is still to be developed, which sets exciting expectations in the years to come.

　　报告时间：2014年10月23日（星期四）下午 4：00

　　报告地点：紫台办公大楼 317会议室

　　联 系 人：马红君（83332210）

欢迎大家积极参加！

　                                                　紫金山天文台学术委员会