学术报告—Radiative Turbulent Mixing Layers and AGN Feedback: Insights from High-Resolution Hydrodynamic Simulations

Abstract:

Turbulent mixing layers (TMLs) and AGN feedback play critical roles in the evolution of galactic and circumgalactic gas. We present key findings from high-resolution hydrodynamic simulations of radiative TMLs across a range of Mach numbers, revealing a two-zone structure at high Mach numbers and distinct cooling and mixing processes. Additionally, we introduce MACER3D, a new suite of 3D AGN feedback simulations resolving gas dynamics from the Bondi scale to the halo. Our results highlight the intricate interplay between AGN and supernova feedback, their impact on star formation, and their role in metal enrichment and X-ray observables. These studies provide new insights into multi-scale gas dynamics in galaxy evolution.

Bio:

Dr. Suoqing Ji is an associate professor at the Center for Astronomy & Astrophysics and the Physics Department, Fudan University. After obtaining his Ph.D. in physics from University of California Santa Barbara in 2018, he moved to Caltech as a Sherman Fairchild Prize Fellow in theoretical astrophysics from 2018 to 2021. He was then an associate professor at the Shanghai Astronomical Observatory, CAS before joining Fudan University in 2024. His research interests include magnetohydrodynamics, turbulence, hydrodynamic and thermal instabilities, cosmic rays, etc., and their application in galaxy formation, the circumgalactic medium and stellar physics.