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arXiv · 0706.0740

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

Sascha Husa·Jose A. Gonzalez·Mark Hannam·Bernd Bruegmann·Ulrich Sperhake
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Abstract

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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Sascha Husa, Jose A. Gonzalez, Mark Hannam, Bernd Bruegmann, Ulrich Sperhake. 2007-06-05. Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing. https://doi.org/10.1088/0264-9381%2F25%2F10%2F105006

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