Black-hole binary evolutions with the LEAN code

Black-hole binary evolutions with the Lean code

Numerical simulations of black-hole binaries, obtained with the Lean code, are presented. The code is demonstrated to produce state-of-the-art evolutions of inspiralling and merging black holes with convergent waveforms. We further compare results from head-on collisions of Brill-Lindquist and Kerr-Schild data to study the dependency of the waveforms on the choice of initial data type. In this ...

Extreme-Mass-Ratio-Black-Hole-Binary Evolutions with Numerical Relativity

We perform the first fully nonlinear numerical simulations of black-hole binaries with mass ratios 100:1. Our technique is based on the moving puncture formalism with a new gauge condition and an optimal choice of the mesh refinement. The evolutions start with a small nonspinning black hole just outside the ISCO that orbits twice before plunging. We compute the gravitational radiation, as well ...

Binary black hole evolutions of approximate puncture initial data

Tanja Bode, Pablo Laguna, Deirdre M. Shoemaker, Ian Hinder, Frank Herrmann, and Birjoo Vaishnav Center for Gravitational Wave Physics The Pennsylvania State University, University Park, PA 16802 Center for Relativistic Astrophysics and School of Physics Georgia Institute of Technology, Atlanta, GA 30332 Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Golm, Germany Center f...

Binary black-hole evolutions of excision and puncture data

We present a new numerical code developed for the evolution of binary black-hole spacetimes using different initial data and evolution techniques. The code is demonstrated to produce state-of-theart simulations of orbiting and inspiralling black-hole binaries with convergent waveforms. We also present the first detailed study of the dependence of gravitational waveforms resulting from threedime...

Foundations of multiple black hole evolutions