Events
【DoA Seminar】February 28th by Pengjie Zhang
Description
Title: Seeing the Missing Worlds Using CMB as a Backlight
speaker：Pengjie Zhang
Abstract: During the 14 billion year journey from the last scattering surface to observers, cosmic microwave background (CMB) photons were deflected (CMB lensing), stretched (the ISW effect) and scattered (the Sunyaev Zel’dovich effect and patchy screening). These secondary CMB anisotropies contain invaluable information on missing baryons, dark matter, dark energy and the origin mechanism of the universe. I will present a brief review and then show some recent progresses.
Bio: Pengjie Zhang, professor at Shanghai Jiao Tong University and chair of the astronomy department. He works on cosmology, in particularly the large scale structure of the universe including secondary CMB anisotropies, weak gravitational lensing and peculiar velocity, and their applications in fundamental cosmology such as the nature of gravity and the orgin mechanism of the Universe.
Time: 10:00-11:00, 28/Feb, Friday
Venue: Room 506 (Large seminar room), Department of Astronomy
