The Breton-Manko equatorially antisymmetric binary configuration revisited

TL;DR

This paper revisits the Breton-Manko binary black hole solution, reformulating it in physical parameters to verify a geometric inequality for interacting black holes with struts.

Contribution

The paper presents a new parametrization of the Breton-Manko solution, enabling direct verification of a recent geometric inequality for black hole interactions.

Findings

The black-hole sector saturates the geometric inequality.

The reformulation simplifies analysis of black hole interactions.

Provides insights into binary black hole configurations.

Abstract

The Breton-Manko solution for two identical counter-rotating Kerr-Newman charged masses is rewritten in the physical parametrization involving Komar quantities. The new form of the solution turns out to be very convenient for verifying that the black-hole sector of the Bret\'on-Manko binary configuration saturates a recent geometric inequality for interacting black holes with struts discovered by Gabach Clement.