Heidelberg 2007 – scientific programme
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GR: Fachverband Gravitation und Relativitätstheorie
GR 202: Numerische Simulationen
GR 202.2: Talk
Tuesday, March 6, 2007, 14:15–14:30, KIP Kl. HS
Calibration of Moving Puncture Simulations — •Bernd Brügmann1, Jose Gonzalez1, Mark Hannam1, Sascha Husa1, Ulrich Sperhake1, and Wolfgang Tichy2 — 1University of Jena, Germany — 2Florida Atlantic University, USA
We present single and binary black hole simulations that follow the moving puncture paradigm of simulating black-hole spacetimes without excision, and use moving boxes mesh refinement. Focussing on binary black hole configurations where the simulations cover roughly two orbits, we address five major issues determining the quality of our results: numerical discretization error, finite extraction radius of the radiation signal, physical appropriateness of initial data, gauge choice and computational performance.