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AGN feedback is widely invoked to regulate hot gas in galaxies and clusters, yet most existing models remain phenomenological and lack predictive power. I will present results from the MACER framework, a physically grounded model that self-consistently links black hole accretion to radiative and mechanical feedback. Across both cluster and galactic scales, MACER achieves predictive, parameter-free agreement with key X-ray observables. In clusters, only the coupled action of jets and winds can suppress cooling flows and reproduce the observed thermodynamic and star-forming properties, with turbulence-driven energy conversion dramatically enhancing heating efficiency. In galaxies, the same model quantitatively matches recent eROSITA measurements of circumgalactic X-ray emission over a wide radial range.

BIO

Prof. Feng Yuan received his Ph.D. in Astrophysics from the University of Science and Technology of China (USTC) in 1997. He held postdoctoral positions at Nanjing University, the Max Planck Institute for Radio Astronomy (Germany), Harvard University, and Purdue University (USA). In 2005, he joined the Shanghai Astronomical Observatory (SHAO) as a Research Professor, where he has also undertaken various academic and administrative responsibilities between 2005 and 2023. In 2024, he was appointed Distinguished Professor at Fudan University and is currently the Founding Director of the Center for Astronomy and Astrophysics. His research focuses on black hole astrophysics, including accretion physics, active galactic nuclei, galaxy evolution, and X-ray transients. He has published over 200 peer-reviewed papers with more than 25,000 citations. He is one of the initiators of the Event Horizon Telescope (EHT) Collaboration, which produced the first image of a black hole in 2019, a milestone in observational astrophysics.

Host: Feng Yuan