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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.17775 |
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| _version_ | 1866915496381644800 |
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| author | Marks, Gareth Arturo Staelens, Seppe J. Evstafyeva, Tamara Sperhake, Ulrich |
| author_facet | Marks, Gareth Arturo Staelens, Seppe J. Evstafyeva, Tamara Sperhake, Ulrich |
| contents | We study the stability of ultracompact boson stars admitting light rings combining a perturbative analysis with 3+1 numerical-relativity simulations with and without symmetry assumptions. We observe excellent agreement between all perturbative and numerical results which uniformly support the hypothesis that this family of black-hole mimickers is separated into stable and unstable branches by extremal-mass configurations. This separation includes, in particular, thin-shell boson stars with light rings located on the stable branch which we conclude to represent long-term stable black-hole mimickers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_17775 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Long-term stable nonlinear evolutions of ultracompact black-hole mimickers Marks, Gareth Arturo Staelens, Seppe J. Evstafyeva, Tamara Sperhake, Ulrich General Relativity and Quantum Cosmology We study the stability of ultracompact boson stars admitting light rings combining a perturbative analysis with 3+1 numerical-relativity simulations with and without symmetry assumptions. We observe excellent agreement between all perturbative and numerical results which uniformly support the hypothesis that this family of black-hole mimickers is separated into stable and unstable branches by extremal-mass configurations. This separation includes, in particular, thin-shell boson stars with light rings located on the stable branch which we conclude to represent long-term stable black-hole mimickers. |
| title | Long-term stable nonlinear evolutions of ultracompact black-hole mimickers |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2504.17775 |