14 papers
The 3D Grazing Collision of Two Black Holes
Miguel Alcubierre, Werner Benger, Bernd Bruegmann +4
We present results for two colliding black holes (BHs), with angular momentum, spin, and unequal mass. For the first time gravitational waveforms are computed for a grazing collisi…
Test-beds and applications for apparent horizon finders in numerical relativity
M. Alcubierre, S. Brandt, B. Bruegmann +4
We present a series of test beds for numerical codes designed to find apparent horizons. We consider three apparent horizon finders that use different numerical methods: one of the…
Head--on Collision of Two Unequal Mass Black Holes
Peter Anninos, Steven Brandt
We present results from the first fully nonlinear numerical calculations of the head--on collision of two unequal mass black holes. Selected waveforms of the most dominant l=2, 3 a…
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…
First order hyperbolic formalism for Numerical Relativity
Carles Bona, Joan Masso, Ed Seidel +1
The causal structure of Einstein's evolution equations is considered. We show that in general they can be written as a first order system of balance laws for any choice of slicing…
The Near-Linear Regime of Gravitational Waves in Numerical Relativity
Peter Anninos, Joan Masso, Edward Seidel +2
We report on a systematic study of the dynamics of gravitational waves in full 3D numerical relativity. We find that there exists an interesting regime in the parameter space of th…