Bounds on the minimum orbital periods of non-singular Hayward and Bardeen black holes
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915311773548544 |
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| author | Liu, Guohua Peng, Yan |
| author_facet | Liu, Guohua Peng, Yan |
| contents | Based on previous studies, universal bounds $4πM \leqslant T_{min} \leqslant 6\sqrt{3}πM$ were conjectured to be characteristic properties of black hole spacetimes, where $M$ represents the mass of black holes and $T_{min}$ is the minimum orbital periods around black holes. In this work, we explore the minimum orbital periods of objects around Hayward and Bardeen black holes without central singularities. By combining analytical and numerical methods, we show that both Hayward and Bardeen black holes conform to these bounds. Our results imply that such bounds may be connected to the presence of the black hole horizon rather than the singularity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_23000 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bounds on the minimum orbital periods of non-singular Hayward and Bardeen black holes Liu, Guohua Peng, Yan General Relativity and Quantum Cosmology High Energy Physics - Theory Based on previous studies, universal bounds $4πM \leqslant T_{min} \leqslant 6\sqrt{3}πM$ were conjectured to be characteristic properties of black hole spacetimes, where $M$ represents the mass of black holes and $T_{min}$ is the minimum orbital periods around black holes. In this work, we explore the minimum orbital periods of objects around Hayward and Bardeen black holes without central singularities. By combining analytical and numerical methods, we show that both Hayward and Bardeen black holes conform to these bounds. Our results imply that such bounds may be connected to the presence of the black hole horizon rather than the singularity. |
| title | Bounds on the minimum orbital periods of non-singular Hayward and Bardeen black holes |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.23000 |