报告题目: Measuring the Cosmic Shear in Fourier space with CFHTlens data.

　　报 告 人：张骏（研究员，上海交大）

　　摘    要：Weak gravitational lensing is an important probe of the properties of our Universe. However, the measurement of the weak lensing effect (i.e., cosmic shear) is challenging due to the presence of the point-spread-function, noise, finite pixel size, etc.. I will introduce a cosmic shear measurement method in Fourier space, which removes the systematic errors in a model-independent way. I will show some preliminary results using the CFHTlens data..

　　报告时间：2015年9月9日 下午1:30

　　报告地点：5楼小会议室（517）

　　联 系 人：戴才萍（83332046）

欢迎大家积极参加！

　　                                           紫金山天文台学术委员会