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Key Elements of Robustness in Binary Black Hole Evolutions using Spectral Methods
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As a network of advanced-era gravitational wave detectors is nearing its design sensitivity, efficient and accurate waveform modeling becomes more and more relevant. Understanding of the nature of the signal being sought can have an order unity effect on the event rates seen in these instruments. The paper provides a description of key elements of the Spectral Einstein Code ({\tt SpEC}), with details of our spectral adaptive mesh refinement (AMR) algorithm that has been optimized for binary black hole (BBH) evolutions. We expect that the gravitational waveform catalog produced by our code will have a central importance in both the detection and parameter estimation of gravitational waves in these instruments.
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Cited by 2 Pith papers
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Merging black holes with Cauchy-characteristic matching: Computation of late-time tails
First fully nonlinear Cauchy-characteristic matching simulations of binary black hole mergers are stable and accurate, and they expose late-time tails with decay exponents near -3.5 to -3.8.
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Smooth equations of state for high-accuracy simulations of neutron star binaries
Spectral equations of state reduce cost and improve accuracy in SpEC neutron star merger simulations, but the most efficient choice requires an unrealistic low-density recipe.
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