New Taub-NUT Black Holes with Massive Spin-2 Hair
New Taub-NUT Black Holes with Massive Spin-2 Hair
We consider Einstein gravity extended with quadratic curvature invariants, where the well-known Ricci-flat Taub-NUT black hole remains a solution. An analysis of the unstable Lichnerowicz modes in the Taub-NUT background enables us to identify the mass and NUT parameters (m,n) where new Taub-NUT black holes can emerge. We then adopt …