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New Taub-NUT Black Holes with Massive Spin-2 Hair

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arxiv 2406.03692 v1 pith:ZVOFBWRN submitted 2024-06-06 gr-qc hep-th

Yu-Qi Chen , Hai-Shan Liu This is my paper · ORCID
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keywords taub-nutblackholesricci-flatadoptanalysisappropriateaway
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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 numerical technique to construct these new Taub-NUT black holes that bifurcate away from the Ricci-flat ones. Unlike the Ricci-flat Taub-NUT, there can exist two new black holes for an appropriate given temperature, making it a total of three if we include the Ricci-flat one.

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  1. Charged Taub-NUT type Black Holes in Einstein-Weyl-Maxwell Theory

    gr-qc 2025-08 conditional novelty 6.0 of 10

    Charged Taub-NUT black holes in Einstein-Weyl-Maxwell theory are numerically built and show three disconnected solution branches, unlike their intersecting neutral counterparts.

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