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Impact of LIGO-Virgo black hole binaries on gravitational wave background searches

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arxiv 2111.05847 v2 pith:DISYFJUH submitted 2021-11-10 astro-ph.CO astro-ph.HEgr-qc

Marek Lewicki , Ville Vaskonen This is my paper · ORCID
classification astro-ph.COastro-ph.HEgr-qc
keywords binariesblackholebackgroundforegroundfuturegravitationalimpact
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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.

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