HEAD-ON COLLISIONS OF DIFFERENT INITIAL DATA
Ulrich Sperhake, Bernd Brügmann, José A. González, Mark D. Hannam, S. Husa · 2012
We discuss possible origins for discrepancies observed in the radiated energies in head-on collisions of non-spinning binaries starting from Brill-Lindquist and superposed Kerr-Schild data. For this purpose, we discuss the impact of different choices of gauge parameters and a small initial boost of the black holes. 1.