Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary
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| Format: | Preprint |
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2025
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| _version_ | 1866910164468105216 |
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| author | Mathews, Josh Wardell, Barry Pound, Adam Warburton, Niels |
| author_facet | Mathews, Josh Wardell, Barry Pound, Adam Warburton, Niels |
| contents | Recent progress in gravitational self-force theory has led to the development of a first post-adiabatic (1PA) waveform model for nonspinning, quasicircular compact binaries [Phys. Rev. Lett. 130, 241402 (2023)]. In this paper, we extend that model to allow for a slowly spinning primary black hole and a generic, precessing spin on the secondary object, restricting to the case of small misalignment between the primary spin and the orbital angular momentum. We demonstrate excellent agreement between our waveforms and fully nonlinear numerical relativity simulations for mass ratios $q\gtrsim 5$ and primary spins $|χ_1|\lesssim 0.1$ and arbitrary secondary spin $χ_2 \lesssim 1$. In particular we present the re-summed 1PAT1R waveform model, which significantly improves the accuracy of the original 1PAT1 waveforms for comparable masses and increasing primary spin. Our models are publicly available in the WaSABI package. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_16113 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary Mathews, Josh Wardell, Barry Pound, Adam Warburton, Niels General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Recent progress in gravitational self-force theory has led to the development of a first post-adiabatic (1PA) waveform model for nonspinning, quasicircular compact binaries [Phys. Rev. Lett. 130, 241402 (2023)]. In this paper, we extend that model to allow for a slowly spinning primary black hole and a generic, precessing spin on the secondary object, restricting to the case of small misalignment between the primary spin and the orbital angular momentum. We demonstrate excellent agreement between our waveforms and fully nonlinear numerical relativity simulations for mass ratios $q\gtrsim 5$ and primary spins $|χ_1|\lesssim 0.1$ and arbitrary secondary spin $χ_2 \lesssim 1$. In particular we present the re-summed 1PAT1R waveform model, which significantly improves the accuracy of the original 1PAT1 waveforms for comparable masses and increasing primary spin. Our models are publicly available in the WaSABI package. |
| title | Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2510.16113 |