Gravitational wave memory in $\Lambda$CDM cosmology
General Relativity and Quantum Cosmology
2017-10-25 v1
Abstract
We examine gravitational wave memory in the case where sources and detector are in a CDM cosmology. We consider the case where the universe can be highly inhomogeneous, but the gravitatational radiation is treated in the short wavelength approximation. We find results very similar to those of gravitational wave memory in an asymptotically flat spacetime; however, the overall magnitude of the memory effect is enhanced by a redshift-dependent factor. In addition, we find the memory can be affected by lensing.
Cite
@article{arxiv.1706.02009,
title = {Gravitational wave memory in $\Lambda$CDM cosmology},
author = {Lydia Bieri and David Garfinkle and Nicolas Yunes},
journal= {arXiv preprint arXiv:1706.02009},
year = {2017}
}