How to move a black hole without excision: gauge conditions for the numerical evolution of a moving puncture

Dae-Il Choi; James R. van Meter; John G. Baker; Michael Koppitz

arxiv: gr-qc/0605030 · v2 · submitted 2006-05-05 · 🌀 gr-qc

How to move a black hole without excision: gauge conditions for the numerical evolution of a moving puncture

James R. van Meter , John G. Baker , Michael Koppitz , Dae-Il Choi This is my paper

classification 🌀 gr-qc

keywords blackgaugeholemovingnumericalpunctureaccurateacross

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Recent demonstrations of unexcised black holes traversing across computational grids represent a significant advance in numerical relativity. Stable and accurate simulations of multiple orbits, and their radiated waves, result. This capability is critically undergirded by a careful choice of gauge. Here we present analytic considerations which suggest certain gauge choices, and numerically demonstrate their efficacy in evolving a single moving puncture black hole.

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