How Superbubble-powered, Entropy-driven Outflows Regulate Star Formation and Bulge Growth in Disc Galaxies

L/M* galaxies are an important class of objects. Not only are they the "turnover" in the galaxy mass Schecter function, they also have the highest stellar mass (and baryon) fraction, very low bulge-to-disk ratios, and dominate the star formation efficiency of every epoch they live in. In this talk I will present the results of a sample of 18 cosmological M* galaxies, simulated using the state-of-the-art superbubble method for handling feedback from Type II Supernovae. I will show that the key to obtaining a realistic stellar mass to halo mass relation (SMHMR) is preventing the runaway growth of a massive bulge by driving outflows with large mass-loadings. These how outflows can flow through the CGM, driven by local entropy gradients & buoyancy until the halo reaches a critical mass, and they no longer effectively transport gas away from the star forming disc.