Balanced magnetized double black holes

Understand

We report on a two-parameter family of exact asymptotically flat stationary solutions to Einstein-Maxwell theory.

• These solutions are free from ring singularities in a specific parameter range.
• They represent systems of two non-rotating extreme black holes with opposite magnetic and NUT charges, connected by a tensionless Dirac-Misner string.
• For a given ADM mass of the system, the distance between the two black holes has a lower bound.