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Newtonian hydrodynamics of the coalescence of black holes with neutron stars -- II. Tidally locked binaries with a soft equation of state

Newtonian hydrodynamics of the coalescence of black holes with neutron stars -- II. Tidally locked binaries with a soft equation of state

We present a numerical study of the hydrodynamics in the final stages of inspiral of 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 soft (adiabatic index …