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arXiv · 2402.16849

The dark timbre of gravitational waves

Juan Urrutia·Ville Vaskonen
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Abstract

Gravitational wave timbre, the relative amplitude and phase of the different frequency harmonics, can change due to interactions with low-mass halos. We focus on binaries in the LISA range and find that the integrated lens effect of cold dark matter structures can be used to probe the existence of $M_{\rm v}\lesssim 10\, M_{\odot}$ halos if a single binary with eccentricity $e=0.3-0.6$ is detected with a signal-to-noise ratio $100 - 10^3$ and it is at $z_s=0.5$.

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Juan Urrutia, Ville Vaskonen. 2024-02-26. The dark timbre of gravitational waves. https://arxiv.org/abs/2402.16849

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