Disk Tearing: Numerical Investigation of Warped Disk Instability

We present numerical simulations of misaligned discs around a spinning black hole covering range parameters. Previous have shown that are strongly warped by forced precession -- in this case the Lense-Thirring effect from can break apart into discrete or rings behave quasi-independently for short timescales. With we here, confirm thin and highly inclined more susceptible to disc tearing than thicker low inclination discs, show lower values viscosity parameter lead instability at warp amplitudes. This is consistent with detailed stability analysis equations. find growth rates seen similar across broad parameters, same order as predicted rates. However, did not expected trend parameter. may indicate affected resolution, wavelength fastest growing mode function local Finally, also occur higher In case, manifests differently producing large changes tilt locally disc, rather twist typically discs.