Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-05-02
Class.Quant.Grav. 23 (2006) S579-S598
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
16 pages, 7 figures. To appear in the Classical and Quantum Gravity special issue on Numerical Relativity
Scientific paper
10.1088/0264-9381/23/16/S15
We introduce a computational framework which avoids solving explicitly hydrodynamic equations and is suitable to study 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 space-time 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.
Laguna Pablo
Sopuerta Carlos F.
Sperhake Ulrich
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