报告摘要：Over the past few years, the James Webb Space Telescope (JWST) has delivered rest-frame UV to optical spectra for numerous galaxies in the early universe up to z ~ 14.5. This dataset provides unprecedented insight into the nature of early galaxies and their impact to the cosmic reionization. In my talk, I will present the most up-to-date results indicated from JWST spectroscopy, highlighting the nature of stars, gas, and AGN activities of galaxies at the highest redshifts, as well as the insight into reionization.

主讲人简介：Mengtao Tang (唐梦涛) is currently a tenure-track fellow at Tsung-Dao Lee Institute, Shanghai Jiao Tong University. He received B.S. from Peking University in 2014 and Ph.D. from the University of Arizona in 2020. He has been a postdoctoral researcher at University College London and the University of Arizona before joining TDLI in 2025. Mengtao’s research focuses on understanding the nature of galaxies in the early universe and reionization via observations.