Structure of Kerr black hole spacetimes in Weyl conformal gravity
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911235865313280 |
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| author | Asuncion, Miguel Yulo Horne, Keith Kusano, Reinosuke Dominik, Martin |
| author_facet | Asuncion, Miguel Yulo Horne, Keith Kusano, Reinosuke Dominik, Martin |
| contents | We analyze the stationary, uncharged, rotating, vacuum solution to Weyl conformal gravity. We elucidate the causal and ergoregion structure of the spacetimes found in the parameter space of the metric for positive mass. These are then compared to the analogous Kerr, Kerr-de Sitter, and Kerr-Anti-de Sitter solutions to general relativity. Additionally, we investigate and derive the extremal limits for both the horizons and ergosurfaces of the spacetimes. The horizon surface gravities and Hawking temperatures at the extremal horizon limits are then calculated to show that they vanish. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_01379 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Structure of Kerr black hole spacetimes in Weyl conformal gravity Asuncion, Miguel Yulo Horne, Keith Kusano, Reinosuke Dominik, Martin General Relativity and Quantum Cosmology High Energy Physics - Theory We analyze the stationary, uncharged, rotating, vacuum solution to Weyl conformal gravity. We elucidate the causal and ergoregion structure of the spacetimes found in the parameter space of the metric for positive mass. These are then compared to the analogous Kerr, Kerr-de Sitter, and Kerr-Anti-de Sitter solutions to general relativity. Additionally, we investigate and derive the extremal limits for both the horizons and ergosurfaces of the spacetimes. The horizon surface gravities and Hawking temperatures at the extremal horizon limits are then calculated to show that they vanish. |
| title | Structure of Kerr black hole spacetimes in Weyl conformal gravity |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2507.01379 |