Critical Collapse of Perfect Fluids with Angular Momentum

We study critical phenomena in the gravitational collapse of rotating perfect fluids. We perform numerical simulations and observe critical scaling in both supercritical evolutions, which lead to the formation of a black hole, and subcritical evolutions, in which case the fluid disperses to infinity and leaves behind flat space. We also develop a theoretical model of mass and angular momentum scaling for critical collapse with rotation, and compare the predictions of this model with the numerical data.