Evolving black hole-neutron star binaries in general relativity using pseudospectral and finite difference methods

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dc.creatorDuez, Matthew D.
dc.creatorFoucart, Francois
dc.creatorKidder, Lawrence E.
dc.creatorPfeiffer, Harald P.
dc.creatorScheel, Mark A.
dc.creatorTeukolsky, Saul A.
dc.date2008-08-29
dc.date2008-09-05
dc.date.accessioned2026-07-07T12:15:25Z
dc.date.available2026-07-07T12:15:25Z
dc.descriptionWe present a code for solving the coupled Einstein-hydrodynamics equations to evolve relativistic, self-gravitating fluids. The Einstein field equations are solved in generalized harmonic coordinates on one grid using pseudospectral methods, while the fluids are evolved on another grid using shock-capturing finite difference or finite volume techniques. We show that the code accurately evolves equilibrium stars and accretion flows. Then we simulate an equal-mass nonspinning black hole-neutron star binary, evolving through the final four orbits of inspiral, through the merger, to the final stationary black hole. The gravitational waveform can be reliably extracted from the simulation.
dc.description15 pages, 16 figures, added references
dc.identifierhttps://arxiv.org/abs/0809.0002
dc.identifierhttp://arxiv.org/abs/0809.0002
dc.identifierPhys.Rev.D78:104015,2008
dc.identifierdoi:10.1103/PhysRevD.78.104015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211492
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleEvolving black hole-neutron star binaries in general relativity using pseudospectral and finite difference methods
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