5 papers
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…
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…