# Comparison of Binary Black Hole Initial Data Sets

@article{Varma2018ComparisonOB, title={Comparison of Binary Black Hole Initial Data Sets}, author={Vijay Varma and Mark A. Scheel and Harald P. Pfeiffer}, journal={Bulletin of the American Physical Society}, year={2018} }

We present improvements to the construction of binary black hole initial data used in the Spectral Einstein Code (SpEC). We introduce new boundary conditions for the extended conformal thin sandwich elliptic equations that enforce the excision surfaces to be slightly inside rather than on the apparent horizons, thus avoiding extrapolation into the black holes at the last stage of initial data construction. We find that this improves initial data constraint violations near and inside the… CONTINUE READING

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