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arXiv · 2605.01216

Gravitational Waves from a Black Hole Falling Radially into a Thin-Shell Traversable Wormhole

Mohammad Nosherwan Malik·James B. Dent·William E. Gabella·Thomas W. Kephart
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Abstract

We compute the gravitational-wave signal generated by the radial infall of a stellar-mass black hole into a thin-shell Schwarzschild traversable wormhole. Modeling the black hole as a test particle, we derive analytic expressions for the emitted waveform, including contributions from the mass quadrupole and higher-order multipoles. The resulting signal exhibits a characteristic pulse-gap structure associated with repeated throat crossings. We further compute the amplitude spectral density and compare it with representative ground-based detector sensitivities, finding that such signals could lie within the sensitivity range for optimally oriented sources at distances of order ~500 Mpc. These results provide a potential observational signature of traversable wormholes in gravitational-wave data.

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Mohammad Nosherwan Malik, James B. Dent, William E. Gabella, Thomas W. Kephart. 2026-05-02. Gravitational Waves from a Black Hole Falling Radially into a Thin-Shell Traversable Wormhole. https://arxiv.org/abs/2605.01216

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