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Host: Xiaoyang Hu
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Abstract: The epoch of reionization, during which neutral hydrogen in the early universe was ionized, marks the universe’s last major phase transition. Understanding this period is a key frontier in modern astrophysics, offering crucial insights into the history of cosmic structure formation. Fundamental questions about reionization remain: When and how did reionization occur? What were the primary sources (massive stars in galaxies or active galactic nuclei) driving reionization? In this talk, I will present my research on characterizing the epoch of reionization through spectroscopic observations of galaxies in this era, using large ground-based telescopes and the James Webb Space Telescope. I will also provide a brief overview of my future research plans.
Bio: Mengtao Tang (唐梦涛) is currently a JWST Arizona/Steward Postdoc in Early galaxies and Reionization (JASPER) scholar at Steward Observatory, the University of Arizona. Mengtao’s work focuses on utilizing JWST and large ground-based telescopes to investigate the physical properties of galaxies in the early universe and the constraints these galaxies impose on the process of cosmic reionization. Mengtao received his Ph.D. in Astronomy & Astrophysics from the University of Arizona in 2020, and became a postdoctoral researcher at University College London from 2020 to 2022.