Gravitational Waves by Perturbation of a Slowly Rotating Thin-Shell Wormhole

TL;DR

This paper investigates gravitational wave emission caused by perturbations in a slowly rotating, axisymmetric thin-shell wormhole, deriving its wave spectrum and energy and angular momentum loss rates.

Contribution

It introduces a model for gravitational wave generation from a perturbed, slowly rotating thin-shell wormhole, including derivations of spectrum and loss rates.

Findings

Derived gravitational wave spectrum for the wormhole

Calculated energy loss rate due to perturbations

Estimated angular momentum loss rate

Abstract

In this paper, the gravitational wave generation by a slowly rotating thin-shell wormhole is considered. Since the rotating thin-shell wormhole is assumed to be an axisymmetric rigid body, the rotation axis coincides with the largest principal axis which means there is no precession motion. However, if there is a perturbation in the angular velocity, the rotating wormhole can move with precession by perturbation which make arise the gravitational waves. We derive the gravitational wave spectrum, energy loss rate, and angular momentum loss rate.