Carlos F Sopuerta et al 2006 Class. Quantum Grav. 23 S579 doi:10.1088/0264-9381/23/16/S15
Carlos F Sopuerta1, Ulrich Sperhake1,2 and Pablo Laguna1,3
Show affiliationsWe introduce a computational framework which avoids solving explicitly hydrodynamic equations and is suitable for studying the pre-merger evolution of black hole–neutron star binary systems. The essence of the method consists of constructing a neutron star model with a black hole companion and freezing the internal degrees of freedom of the neutron star during the course of the evolution of the spacetime geometry. We present the main ingredients of the framework, from the formulation of the problem to the appropriate computational techniques to study these binary systems. In addition, we present numerical results of the construction of initial data sets and evolutions that demonstrate the feasibility of this approach.
04.70.-s Physics of black holes
97.80.-d Binary and multiple stars
04.20.Gz Spacetime topology, causal structure, spinor structure
85A05 Galactic and stellar dynamics
83C75 Space-time singularities, cosmic censorship, etc.
83D05 Relativistic gravitational theories other than Einstein's, including asymmetric field theories
Issue 16 (21 August 2006)
Received 20 March 2006
Published 27 July 2006
Carlos F Sopuerta et al 2006 Class. Quantum Grav. 23 S579
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