Cosmologically Coupled Black Holes with Regular Horizons
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908913665835008 |
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| author | Cadoni, Mariano de Lima, Leonardo Pitzalis, Mirko Rodrigues, Davi C. Sanna, Andrea P. |
| author_facet | Cadoni, Mariano de Lima, Leonardo Pitzalis, Mirko Rodrigues, Davi C. Sanna, Andrea P. |
| contents | We present the most general and exact solution of Einstein's gravity sourced by an anisotropic fluid describing the cosmological embedding (CE) of a static and spherically-symmetric object, including black holes (BHs) or exotic compact objects, without radial energy influx and in an arbitrary Friedmann-Lemaître-Robertson-Walker (FLRW) cosmology. This is done fully considering backreaction of the local geometry on the cosmological dynamics. Our solution is free of curvature singularities at the would-be BH event horizon, thus solving a main issue of the CE of BH solutions proposed so far. As a byproduct, we derive a new CE of the Schwarzschild BH - distinct from McVitties's original proposal - that is regular everywhere except at the central singularity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_03296 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Cosmologically Coupled Black Holes with Regular Horizons Cadoni, Mariano de Lima, Leonardo Pitzalis, Mirko Rodrigues, Davi C. Sanna, Andrea P. General Relativity and Quantum Cosmology We present the most general and exact solution of Einstein's gravity sourced by an anisotropic fluid describing the cosmological embedding (CE) of a static and spherically-symmetric object, including black holes (BHs) or exotic compact objects, without radial energy influx and in an arbitrary Friedmann-Lemaître-Robertson-Walker (FLRW) cosmology. This is done fully considering backreaction of the local geometry on the cosmological dynamics. Our solution is free of curvature singularities at the would-be BH event horizon, thus solving a main issue of the CE of BH solutions proposed so far. As a byproduct, we derive a new CE of the Schwarzschild BH - distinct from McVitties's original proposal - that is regular everywhere except at the central singularity. |
| title | Cosmologically Coupled Black Holes with Regular Horizons |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2601.03296 |