Title: Co-Evolution of Galaxies and Black Holes in the Early Universe with JWST

Speaker: Dr. Yu-Cheng Qiu (Tsung-Dao Lee Institute, Shanghai Jiao Tong University)

Time: 10:00am, July 14, 2025

Location: 3-402, PMO Xianlin Campus

Abstract: In this talk, I will provide a brief overview of key findings on high-redshift active galactic nuclei (AGN), including the properties of their host galaxies revealed by JWST observations, and discuss their broader implications. Highlights will include results from extensive follow-up observations of known bright quasars at cosmic dawn, as well as the new discovery of a large population of fainter and/or obscured AGN (including the so-called “little red dots”). These high-redshift AGN populations exhibit a variety of intriguing features, though their interpretation remains complex, with many unresolved questions. Notably, we are still far from having a complete picture of the AGN population at high redshift, and much work remains to be done, particularly with MIRI.