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Freiburg 2008 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 6: Numerische Relativitätstheorie

GR 6.4: Talk

Tuesday, March 4, 2008, 17:45–18:05, KGI-HS 1010

Computing the Event Horizon for Binary Black Hole Systems — •Marcus Thierfelder — Theoretical Physics Institute, University of Jena, Germany

I present results of an event horizon finder for full 3D numerical simulations in general relativity. The algorithm implements the method developed by Peter Diener. It works by evolving a complete null surface backwards in time, where the null surface is described as a level set of a scalar function. The code can handle numerical spacetimes which are created by the BAM code. So it is possible to calculate the event horizon for the case of two black holes that inspiral for several orbits and merge to one final black hole.

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