报告人：Greg Aldering Lawrence Berkeley National Lab

报告时间：2011年4月14日（周四）下午4：00

报告地点：郑裕彤讲堂（理学院报告厅）

报告题目：Supernovae as Probes of Dark Energy

报告摘要：The use of Type Iasupernovae as distance indicators led to the startling discovery of the accelerating expansion of the Universe more than a decade ago. Large 2nd generation surveys have significantly increased the size and quality of the very distant supernova sample. However, the critical nearby reference sample still suffers problems when employed for cosmology. In this talk I will discuss recent progress in measuring the dark energy equation of state with both distant and nearby supernova, with an emphasis on the Nearby Supernova Factory (SNfactory), which second phase is starting with TsinghuaCenter for Astrophysics as a major partner.