Postadiabatic self-force waveforms: Slowly spinning primary and precessing secondary

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Authors: Josh Mathews, Barry Wardell, Adam Pound, Niels Warburton
Cited by: 7
References: 133

Abstract

Recent progress in gravitational self-force theory has led to the development of a first postadiabatic (1PA) waveform model for nonspinning, quasicircular compact binaries []. 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 | χ 1 | ≲ 0.1 and arbitrary secondary spin χ 2 ≲ 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 a package.

Fields of Study & Subjects

Pulsars and Gravitational Waves Research Astrophysical Phenomena and Observations Black Holes and Theoretical Physics

Publication details

Journal / source
Physical review. D/Physical review. D.
Publisher
American Physical Society (APS)
Volume
113
Issue
6
Publication date
24 February 2026
Language
EN