Gravitational Waves by the Perturbation of a Rotating Axisymmetric Rigid Body

TL;DR

This paper investigates how perturbations in the rotation of an axisymmetric rigid body can generate gravitational waves, analyzing waveforms and their characteristics in such precession scenarios.

Contribution

It introduces a study of gravitational wave generation from perturbations in the rotation of symmetric bodies, expanding understanding of precession-induced gravitational waves.

Findings

Waveforms depend on perturbation magnitude and rotation parameters.

Precession can produce detectable gravitational wave signals.

Characteristics vary with body symmetry and perturbation details.

Abstract

Precession is one of the important mechanisms of gravitational wave generation in astrophysics. In general, free precession of a rigid body can be caused by the rotation of a triaxial body. In the case of symmetric body, if only the principal axis does not coincide with the axis of rotation, then there is the precession. When a symmetric body rotates around one of its principal axes, the body cannot move with precession. However, when there is a perturbation in angular velocity of the symmetric body spinning around the principal axis of the largest moment, the body can have a precession motion. In this paper, the wave forms and their characteristics of gravitational waves by the perturbation of a rotating axisymmetric rigid body are studied.