Abstract

The growth of supermassive black holes and their role in quenching massive galaxies is a key unsolved problem in galaxy formation. I present a new suite of cosmological hydrodynamic simulations called Simba, which builds on our successful Mufasa simulations to include a novel torque-limited black hole accretion model and AGN feedback using observationally-constrained bipolar kinetic jets. I will describe the physical motivations behind Simba, and show that they yield a galaxy and black hole population in agreement with numerous observations across cosmic time. Simba's AGN feedback has dramatic and unforeseen effects on, among other things, intergalactic gas and green valley galaxy profiles, suggesting new avenues for constraining AGN feedback models.