512 citations · 1.4k across the 20 of their papers we have counts for
19 papers · 1 filter
Three Dimensional Distorted Black Holes
Steven Brandt, Karen Camarda, Edward Seidel +1
We present three-dimensional, {\it non-axisymmetric} distorted black hole initial data which generalizes the axisymmetric, distorted, non-rotating [Bernstein93a] and rotating [Bran…
Nonlinear and Perturbative Evolution of Distorted Black Holes. II. Odd-parity Modes
J Baker, S Brandt, M Campanelli +3
We compare the fully nonlinear and perturbative evolution of nonrotating black holes with odd-parity distortions utilizing the perturbative results to interpret the nonlinear resul…
Symmetry without Symmetry: Numerical Simulation of Axisymmetric Systems using Cartesian Grids
M. Alcubierre, S. Brandt, B. Bruegmann +4
We present a new technique for the numerical simulation of axisymmetric systems. This technique avoids the coordinate singularities which often arise when cylindrical or polar-sphe…
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…
Numerical evolution of matter in dynamical axisymmetric black hole spacetimes. I. Methods and tests
S. Brandt, J. A. Font, J. M. Ibanez +2
We have developed a numerical code to study the evolution of self-gravitating matter in dynamic black hole axisymmetric spacetimes in general relativity. The matter fields are evol…
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…
New Coordinate Systems for Axisymmetric Black Hole Collisions
P. Anninos, S. R. Brandt, P. Walker
We describe a grid generation procedure designed to construct new classes of orthogonal coordinate systems for binary black hole spacetimes. The computed coordinates offer an alter…
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…
New Coordinate Systems for Axisymmetric Black Hole Collisions
S. R. Brandt, P. Walker, P. Anninos
We describe a numerical grid generating procedure to construct new classes of orthogonal coordinate systems that are specially adapted to binary black hole spacetimes. The new coor…
The Matter Plus Black Hole Problem in Axisymmetry
S. R. Brandt, J. A. Font
We present preliminary results in our long-term project of studying the evolution of matter in a dynamical spacetime. To achieve this, we have developed a new code to evolve axisym…
BH Punctures as Initial Data for General Relativity
S. R. Brandt, B. Bruegmann
We construct initial data for several black holes with arbitrary momenta and spins by a new method that is based on a compactification of Brill-Lindquist wormholes. When treated nu…
Three Dimensional Distorted Black Holes: Initial Data and Evolution
S. R. Brandt, K. Camarda, E. Seidel
We present a new class of 3D black hole initial data sets for numerical relativity. These data sets go beyond the axisymmetric, ``gravity wave plus rotating black hole'' single bla…
Gravitational wave extraction and outer boundary conditions by perturbative matching
The Binary Black Hole Grand Challenge Alliance, :, A. M. Abrahams +42
We present a method for extracting gravitational radiation from a three-dimensional numerical relativity simulation and, using the extracted data, to provide outer boundary conditi…
A simple construction of initial data for multiple black holes
Steven Brandt, Bernd Bruegmann
We consider the initial data problem for several black holes in vacuum with arbitrary momenta and spins on a three space with punctures. We compactify the internal asymptotically f…
The collision of boosted black holes
John Baker, Andrew Abrahams, Peter Anninos +4
We study the radiation from a collision of black holes with equal and opposite linear momenta. Results are presented from a full numerical relativity treatment and are compared wit…
The Evolution of Distorted Rotating Black Holes III: Initial Data
Steven R. Brandt, Edward Seidel
In this paper we study a new family of black hole initial data sets corresponding to distorted ``Kerr'' black holes with moderate rotation parameters, and distorted Schwarzschild b…
The Evolution of Distorted Rotating Black Holes II: Dynamics and Analysis
Steven R. Brandt, Edward Seidel
We have developed a numerical code to study the evolution of distorted, rotating black holes. This code is used to evolve a new family of black hole initial data sets corresponding…
Event Horizons of Numerical Black Holes
Peter Anninos, David Bernstein, Steven Brandt +5
We have developed a powerful and efficient method for locating the event horizon of a black hole spacetime, making possible the study of the dynamics of event horizons in numerical…
Dynamics of Apparent and Event Horizons
Peter Anninos, David Bernstein, Steven Brandt +6
The dynamics of apparent and event horizons of various black hole spacetimes, including those containing distorted, rotating and colliding black holes, are studied. We have develop…