Invited Presentation

Reversing Cooling Flows with AGN-driven Shock Waves

Author(s): Fulai Guo (SHAO)

Presenter: Fulai Guo (Shanghai Astronomical Observatory)

An important topic on galaxy groups and clusters is the well-known cooling flow problem, which has been investigated extensively in the past decade. Chandra observations have detected numerous X-ray deficient cavities in galaxy clusters, which are apparently evolved from the interaction of AGN jets with the ICM. While it is widely accepted that AGN jet feedback plays a key role in suppressing cooling flows, it is often debated on the detailed mechanism by which AGN jets deliver energy to the ICM. Here I will present our recent hydrodynamical simulations that aim to answer this important question and to investigate how AGN feedback suppresses cooling flows, with a focus on the roles of AGN-driven shock waves.