Gravitational scattering of solitonic boson stars: Analytics vs Numerics
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909936864198656 |
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| author | Damour, Thibault Jain, Tamanna Sperhake, Ulrich |
| author_facet | Damour, Thibault Jain, Tamanna Sperhake, Ulrich |
| contents | We study the scattering of boson-star binaries, taking into account three effects: point-mass gravitational, tidal, and short-range scalar-field interactions. We compare analytic results to the scattering angle extracted from four sequences of numerical-relativity simulations at fixed energy and varying impact parameter. The very good agreement exhibits the attractive (repulsive) effect of in-phase (out-of-phase) binaries, wich dominates at small impact parameters. We thus obtain the first effective-one-body potential, central for the construction of analytic gravitational-wave templates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_00945 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gravitational scattering of solitonic boson stars: Analytics vs Numerics Damour, Thibault Jain, Tamanna Sperhake, Ulrich General Relativity and Quantum Cosmology High Energy Physics - Theory We study the scattering of boson-star binaries, taking into account three effects: point-mass gravitational, tidal, and short-range scalar-field interactions. We compare analytic results to the scattering angle extracted from four sequences of numerical-relativity simulations at fixed energy and varying impact parameter. The very good agreement exhibits the attractive (repulsive) effect of in-phase (out-of-phase) binaries, wich dominates at small impact parameters. We thus obtain the first effective-one-body potential, central for the construction of analytic gravitational-wave templates. |
| title | Gravitational scattering of solitonic boson stars: Analytics vs Numerics |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.00945 |