Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing

Details Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing

2007-06-05

arxiv.org/abs/0706.0740v1

Class.Quant.Grav.25:105006,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 6 figures

Scientific paper

10.1088/0264-9381/25/10/105006

We describe a modification of a fourth-order accurate ``moving puncture'' evolution code, where by replacing spatial fourth-order accurate differencing operators in the bulk of the grid by a specific choice of sixth-order accurate stencils we gain significant improvements in accuracy. We illustrate the performance of the modified algorithm with an equal-mass simulation covering nine orbits.

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