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Newtonian hydrodynamics of the coalescence of black holes with neutron stars โ€” III. Irrotational binaries with a stiff equation of state

Newtonian hydrodynamics of the coalescence of black holes with neutron stars โ€” III. Irrotational binaries with a stiff equation of state

We present a numerical study of the hydrodynamics in the final stages of inspiral in a black hole-neutron star binary, when the binary separation becomes comparable to the stellar radius. We use a Newtonian three-dimensional Smooth Particle Hydrodynamics (SPH) code, and model the neutron star with a stiff (adiabatic index โ€ฆ