Magnetized Reissner–Nordstrom–Taub–NUT spacetime and microscopic entropy

Abstract

AbstractWe present a novel solution describing magnetized spacetime outside an electrically charged massive object equipped with NUT parameter. To get the solution, we employ the Ernst magnetization to the Reissner–Nordstrom–Taub–NUT spacetime as the seed. After discussing some physical aspects of the spacetime, we show that the extremal entropy of a magnetized Reissner–Nordstrom–Taub–NUT black hole can be reproduced by using the Cardy formula.