Magnetized Kerr-de Sitter Geometry

Abstract

In this paper, we have derived Kerr-de Sitter metric in a magnetic field using null tetrad formalism. It is observed that the dragging effect on a particle moving in the field of a magnetized Kerr object in de Sitter universe is enhanced by the introduction of the magnetic field in the instant case. A magnetized Kerr-de Sitter black hole has two event horizons. We have also derived the Sagnac effect in magnetized Kerr-de Sitter metric and have found that Sagnac effect is affected by magnetic field.