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Testing excision techniques for dynamical 3D black hole evolutions
Miguel Alcubierre, Bernd Bruegmann, Peter Diener +4
We perform both distorted black hole evolutions and binary black hole head on collisions and compare the results of using a full grid to results obtained by excising the black hole…
Dynamical evolution of quasi-circular binary black hole data
Miguel Alcubierre, Bernd Bruegmann, Peter Diener +8
We study the fully nonlinear dynamical evolution of binary black hole data, whose orbital parameters are specified via the effective potential method for determining quasi-circular…
Horizon Pretracking
Erik Schnetter, Frank Herrmann, Denis Pollney
We introduce horizon pretracking as a method for analysing numerically generated spacetimes of merging black holes. Pretracking consists of following certain modified constant expa…
Towards wave extraction in numerical relativity: the quasi-Kinnersley frame
Andrea Nerozzi, Christopher Beetle, Marco Bruni +2
The Newman-Penrose formalism may be used in numerical relativity to extract coordinate-invariant information about gravitational radiation emitted in strong-field dynamical scenari…