Estimates of the Neutrino Dynamics of Black Hole-Neutron Star Mergers

In an attempt to further understand black hole-neutron star systems (BHNS) as potential gamma ray burst central engines we explore the dynamics of BHNS mergers of low mass ratio and high spin. Our simulations include radiative cooling through a leakage approximation. We examine the neutrino signal, the remnant disk dynamics, and the energy deposited by neutrino pair annihilations around the disk.