Moving black holes via singularity excision

Details Moving black holes via singularity excision Moving black holes via singularity excision

2003-01-27

arxiv.org/abs/gr-qc/0301111v1

Class.Quant.Grav. 20 (2003) 3729-3744

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages and 11 figures

Scientific paper

10.1088/0264-9381/20/16/313

We present a singularity excision algorithm appropriate for numerical simulations of black holes moving throughout the computational domain. The method is an extension of the excision procedure previously used to obtain stable simulations of single, non-moving black holes. The excision procedure also shares elements used in recent work to study the dynamics of a scalarfield in the background of a single, boosted black hole. The robustness of our excision method is tested with single black-hole evolutions using a coordinate system in which the coordinate location of the black hole, and thus the excision boundary, moves throughout the computational domain.

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