16 papers
Cauchy-perturbative matching and outer boundary conditions: computational studies
Luciano Rezzolla, Andrew M. Abrahams, Richard A. Matzner +2
We present results from a new technique which allows extraction of gravitational radiation information from a generic three-dimensional numerical relativity code and provides stabl…
Cauchy-perturbative matching and outer boundary conditions I: Methods and tests
M. E. Rupright, A. M. Abrahams, L. Rezzolla
We present a new method of extracting gravitational radiation from three-dimensional numerical relativity codes and providing outer boundary conditions. Our approach matches the so…
Curvature-based Gauge-Invariant Perturbation Theory for Gravity: A New Paradigm
Arlen Anderson, Andrew M. Abrahams, Chris Lea
A new approach to gravitational gauge-invariant perturbation theory begins from the fourth-order Einstein-Ricci system, a hyperbolic formulation of gravity for arbitrary lapse and…
Stable characteristic evolution of generic 3-dimensional single-black-hole spacetimes
The Binary Black Hole Grand Challenge Alliance, :, R. Gomez +42
We report new results which establish that the accurate 3-dimensional numerical simulation of generic single-black-hole spacetimes has been achieved by characteristic evolution wit…
Waveform propagation in black hole spacetimes: evaluating the quality of numerical solutions
L. Rezzolla, A. M. Abrahams, T. W. Baumgarte +4
We compute the propagation and scattering of linear gravitational waves off a Schwarzschild black hole using a numerical code which solves a generalization of the Zerilli equation…
Boosted three-dimensional black-hole evolutions with singularity excision
The Binary Black Hole Grand Challenge Alliance, :, G. B. Cook +43
Binary black hole interactions provide potentially the strongest source of gravitational radiation for detectors currently under development. We present some results from the Binar…