发布日期：2025-09-04
点击次数：
标题：Seeing the Missing Worlds Using CMB as a Backlight 宇宙微光中的隐匿世界
时间：2025-10-30,15:00
主讲人：Pengjie Zhang 张鹏杰 (SJTU)
地点：Physics Building E100
报告语言：English
办公室：E205
During the 14 billion year journey from the last scattering surface to the Earth, cosmic microwave background (CMB) photons were deflected (CMB lensing), stretched (the ISW effect) and scattered (the Sunyaev Zel’dovich effect and patchy screening). The induced secondary CMB anisotropies contain invaluable information on missing baryons, dark matter, dark energy, gravity, and the origin mechanism of the universe. I will present a brief review and then introduce some recent progresses.
BIO
Pengjie Zhang, Professor of Astronomy at Shanghai Jiao Tong University. His research focuses on the large scale structure (LSS) of the universe, including secondary CMB anisotropies, weak gravitational lensing, redshift space distortion/peculiar velocity and the luminosity-distance space LSS. His ultimate interest is to probe fundamental cosmological physics (e.g., the nature of gravity, the origin mechanism of the universe, and the cosmological principle) by astronomical data.
Host: Cheng Zhao
