Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary
Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary
Recent progress in gravitational self-force theory has led to the development of a first post adiabatic(1PA) waveform model for non spinning, 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 ≳ 5 and primary spins jχ1j ≲ 0.1 and arbitrary secondary spin χ2 ≲ 1. In particular we present the resummed 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.
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Mathews, Josh
5b7a3227-6818-46ab-ac6d-fc30e74f7eac
Wardell, Barry
94a827b1-5835-4ab3-bd4b-d6ea89440f26
Warburton, Niels
c21361e1-ccca-45ff-8701-be33f337b9c8
19 March 2026
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Mathews, Josh
5b7a3227-6818-46ab-ac6d-fc30e74f7eac
Wardell, Barry
94a827b1-5835-4ab3-bd4b-d6ea89440f26
Warburton, Niels
c21361e1-ccca-45ff-8701-be33f337b9c8
Pound, Adam, Mathews, Josh, Wardell, Barry and Warburton, Niels
(2026)
Post-adiabatic self-force waveforms: slowly spinning primary and precessing secondary.
Physical Review D, 113, [064034].
(doi:10.1103/ph3p-mscl).
Abstract
Recent progress in gravitational self-force theory has led to the development of a first post adiabatic(1PA) waveform model for non spinning, 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 ≳ 5 and primary spins jχ1j ≲ 0.1 and arbitrary secondary spin χ2 ≲ 1. In particular we present the resummed 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.
Text
Spin_Waveforms
- Accepted Manuscript
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Accepted/In Press date: 24 February 2026
e-pub ahead of print date: 19 March 2026
Published date: 19 March 2026
Identifiers
Local EPrints ID: 511194
URI: http://eprints.soton.ac.uk/id/eprint/511194
ISSN: 2470-0010
PURE UUID: c4c6b249-3956-4938-8733-1f32f1f31baf
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Date deposited: 06 May 2026 16:52
Last modified: 07 May 2026 01:45
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Contributors
Author:
Josh Mathews
Author:
Barry Wardell
Author:
Niels Warburton
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