Initial data transients in binary black hole evolutions
General Relativity and Quantum Cosmology
2015-03-18 v1
Abstract
We describe a method for initializing characteristic evolutions of the Einstein equations using a linearized solution corresponding to purely outgoing radiation. This allows for a more consistent application of the characteristic (null cone) techniques for invariantly determining the gravitational radiation content of numerical simulations. In addition, we are able to identify the {\em ingoing} radiation contained in the characteristic initial data, as well as in the initial data of the 3+1 simulation. We find that each component leads to a small but long lasting (several hundred mass scales) transient in the measured outgoing gravitational waves.
Cite
@article{arxiv.1101.5492,
title = {Initial data transients in binary black hole evolutions},
author = {Nigel Bishop and Denis Pollney and Christian Reisswig},
journal= {arXiv preprint arXiv:1101.5492},
year = {2015}
}
Comments
18 pages, 4 figures