High-accuracy waveforms for binary black hole inspiral, merger, and ringdown
High-accuracy waveforms for binary black hole inspiral, merger, and ringdown
The first spectral numerical simulations of 16 orbits, merger, and ringdown of an equal-mass nonspinning binary black hole system are presented. Gravitational waveforms from these simulations have accumulated numerical phase errors through ringdown of $\ensuremath{\lesssim}0.1\text{ }\text{ }\mathrm{radian}$ when measured from the beginning of the simulation, and $\ensuremath{\lesssim}0.02\text{ }\text{ }\mathrm{radian}$ when …