Binary black hole waveform extraction at null infinity
In this paper, we present a work in progress toward an efficient and economical computational module which interfaces between Cauchy and characteristic evolution codes. Our goal is to provide a standardized waveform extraction tool for the numerical relativity community which will allow CCE to be readily applied to a generic Cauchy code. The tool provides a means of unambiguous comparison between the waveforms generated by evolution codes based upon different formulations of the Einstein equations and different numerical approximation.
Babiuc, M. C., Winicour, J., & Zlochower, Y. (2011). Binary black hole waveform extraction at null infinity. Classical and Quantum Gravity, 28(13), 134006.