A radiating dyon solution

TL;DR

This paper presents a new exact, non-static Einstein-Maxwell solution describing a radiating dyon with both electric and magnetic charges, analyzing its energy and momentum using different pseudotensor methods.

Contribution

It introduces a novel non-static dyon solution extending the Bonnor-Vaidya model and compares energy-momentum calculations from two pseudotensor prescriptions.

Findings

Both Einstein and Landau-Lifshitz pseudotensors yield the same energy and momentum results.

The solution models a non-rotating, radiating dyon with combined electric and magnetic charges.

The energy and power output of the dyon are explicitly calculated.

Abstract

We give a non-static exact solution of the Einstein-Maxwell equations (with null fluid), which is a non-static magnetic charge generalization to the Bonnor-Vaidya solution and describes the gravitational and electromagnetic fields of a nonrotating massive radiating dyon. In addition, using the energy-momentum pseudotensors of Einstein and Landau and Lifshitz we obtain the energy, momentum, and power output of the radiating dyon and find that both prescriptions give the same result.