发布日期:2017年8月17日 | 来源:YOPLAY电子平台| | 作者:罗起苹 | 阅读次数:
TitleStatistical challenges in primordial gravitational-wave detection
Abstract: The search for gravitational waves (GW) has long been the cornerstone of cosmology and astrophysics since Einstein proposed the General relativity (GR) in early 20 century. Detection of Primordial Gravitational Waves (PGWs) would be one of the most significant scientific discoveries. The most effective way for probing PGWs is measuring B-mode polarization of Cosmic Microwave Background radiation (CMB). However, astrophysical foreground contamination is much larger than signals, and so is an unavoidable challenge of detecting primordial B-modes. In this talk, we will first make a general introduction for the project of Ali CMB Polarization Telescope (Ali-CPT) and then review some statistical methods used in CMB foreground removal, including “blind” and “non-blind” source separation techniques.
上一篇: 学术讲座通知