TL;DR
This paper introduces a new method to control constraint violations in full relativistic 3D simulations, demonstrated on binary neutron star systems, leading to improved simulation quality.
Contribution
A novel constraint relaxation technique that enhances the stability and accuracy of relativistic binary neutron star simulations.
Findings
Reduced constraint violations in simulations
Improved stability of binary neutron star models
Enhanced overall simulation accuracy
Abstract
Full relativistic simulations in three dimensions are known to develop runaway modes that grow exponentially and are accompanied by violations of the Hamiltonian and momentum constraints. We present here a method that controls the violation of these constraints and is tested with simulations of binary neutron stars in circular orbits. We show that this technique improves the overall quality of the simulations.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Gamma-ray bursts and supernovae · Geophysics and Gravity Measurements