Self-regulated AGN feedback of light jets in cool-core galaxy clusters

Heating from active galactic nuclei (AGN) is thought to stabilize cool-core clusters, limiting star formation and cooling flows. We employ radiative magneto-hydrodynamic (MHD) simulations model light AGN jet feedback with different accretion modes (Bondi-Hoyle-Lyttleton cold accretion) in an idealised Perseus-like cluster. Independent of the probed model, efficiency, density resolution, cluster self-regulates central entropies times consistent observed clusters this non-cosmological setting. find that increased efficiencies lead more intermittent powers enhanced rates. Our fiducial low-density jets can easily be deflected by orbiting gaseous filaments, which redistributes angular momentum leads extended gas distributions isotropic bubble distributions. In comparison our low momentum-density jets, high heat less efficiently enable a persistent cold-gas disc perpendicular centrally confined. Cavity luminosities measured generally reflect intracluster medium (ICM) correspond averaged are relatively insensitive short periods low-luminosity injection. Cold structures MHD show variety morphologies ranging discy very filamentary structures. particular, magnetic fields crucial inhibit unrealistically massive discs redistributing between hot phases fostering elongated filaments supported pressure.