We study the impact of the black hole binary population currently probed by LIGO-Virgo on future searches for the primordial gravitational wave background. We estimate the foreground generated by the binaries using the observed event rate and a simple modeling of the black hole population. We subtract individually resolvable binaries from the foreground and utilize Fisher analysis to derive sensitivity curves for power-law signals including these astrophysical foregrounds. Even with optimistic assumptions, we find that the reach of future experiments will be severely reduced.
@article{arxiv.2111.05847,
title = {Impact of LIGO-Virgo black hole binaries on gravitational wave background searches},
author = {Marek Lewicki and Ville Vaskonen},
journal= {arXiv preprint arXiv:2111.05847},
year = {2023}
}
Comments
7 pages, 4 figures. Minor changes to match the published version