Gravitational waves in the black string braneworld

Abstract

We study gravitational waves in the black string Randall-Sundrum braneworld. We present a reasonably self-contained and complete derivation of the equations governing the evolution of gravitational perturbations in the presence of a brane localized source, and then specialize to the case of spherical radiation from a pointlike body in orbit around the black string. We solve for the resulting gravitational waveform numerically for a number of different orbital parameters.

16 pages, 8 figures

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• Tidal Love Numbers of Black Holes and Neutron Stars in the Presence of Higher Dimensions: Implications of GW170817
• Gravitational waves and extra dimensions: a short review
• Emergent de Sitter Cosmology Near Black Hole Horizon