Repulsive effect for the unbound high energy particles along the rotation axis in the Kerr-Taub-NUT spacetime

TL;DR

This paper investigates how the NUT charge influences the acceleration and repulsive effects on high-energy particles moving along the rotation axis in Kerr-Taub-NUT spacetime, highlighting the dependence on particle properties.

Contribution

It provides a detailed analysis of the NUT charge's impact on particle acceleration and repulsive effects in Kerr-Taub-NUT spacetime, including numerical results.

Findings

Repulsive effects depend on NUT charge, Carter constant, and particle properties.

NUT charge influences observable velocity and acceleration of particles.

The study offers numerical insights into particle dynamics in Kerr-Taub-NUT spacetime.

Abstract

We have investigated the acceleration of the unbound high energy particles moving along the rotation axis in the Kerr-Taub-NUT spacetime, and then study the dependence of the repulsive effects on the NUT charge for the particles in the spacetime. Whether the repulsive effects with the NUT charge become stronger depends on the Carter constant, the position and velocity of the particles themselves. We also present numerically the changes of the observable velocity and acceleration with the NUT charge for the unbound particles in the Kerr-Taub-NUT spacetime.