Coalescing binary neutron star systems

Physics

Scientific paper

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Neutron Stars, Binary And Multiple Stars, Post-Newtonian Approximation, Perturbation Theory, Related Approximations, Relativistic Stars: Structure, Stability, And Oscillations, Physics Of Black Holes, Black Holes

Scientific paper

We present numerical studies of coalescing neutron star pairs with Newtonian hydrodynamics coupled to the 2.5 Post-Newtonian radiation reaction of Blanchet, Damour, and Schäfer [1]. Our simulations evolve the Euler equations using a modification of the ZEUS 2-D algorithm [2] and use a Fast Fourier Transformation method for solving the Poisson equation for the gravitational and radiation reaction potentials. We find that the radiation reaction produces a significant effect on a neutron star pair when compared to a purely Newtonian simulation. .

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