题 目：A galaxy's life on and off the main sequence of star formation
报告人：Stijn Wuyts
摘 要：Recent observations reveal that merely 3 billion years after the Big Bang a correlation between the structure and stellar populations of galaxies has already emerged. I will discuss progress towards understanding this precursor of the Hubble sequence, by deep surveys using the major observing facilities: PEP with Herschel, SINS with VLT, SEDS with Spitzer, CANDELS with HST. I will demonstrate an array of striking similarities between galaxy populations near and far, in terms of structure and mode of star formation, when viewed in relation to the so-called main sequence of star formation. Key aspects in which galaxies during the peak of cosmic star formation differ from their descendants today will be discussed as well. In addition, state-of-the-art hydrodynamical simulations coupled to radiative transfer shed light on the nature of both star-forming and quiescent galaxies in the young universe, and the connection between them.
时 间：2011年11月2日（星期三）下午14：30
地 点：（北京西路2号）紫台大楼327教室
学术报告咨询：83332210
欢迎积极参与!
紫金山天文台学术委员会学术交流工作委员会
