Transition-to-plunge self-force waveforms with a spinning primary
Transition-to-plunge self-force waveforms with a spinning primary
With the upcoming third-generation gravitational-wave detectors comes the need to build complete, faithful, and fast waveform models for asymmetric-mass-ratio compact binaries. Most efforts within the self-force community have focused on modeling these binaries’ inspiral regime, but for ground-based detectors the systems’ final merger can represent the dominant part of the signal. Recent work by three of us has extended the multiscale self-force framework through the transition-to-plunge and merger-ringdown regimes for nonspinning binaries. In this paper, we generalize the next-to-next-to-leading-order transition-to-plunge waveform model to include the spin of the primary black hole. We also improve the construction of composite inspiral-transition waveform models by performing a change of variables on the binary’s mechanical phase space during the transition to plunge. We provide detailed discussions of our numerical implementation and comparisons with numerical relativity simulations.
Honet, Loic
5022fe7b-4427-458e-8e94-39d892085169
Kuchler, Lorenzo Maximilian
a9e36f3c-24c3-4383-9ef9-284c91b400b4
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Compere, Geoffrey
3fc78084-3b86-46f8-9611-4ae05786aacf
Honet, Loic
5022fe7b-4427-458e-8e94-39d892085169
Kuchler, Lorenzo Maximilian
a9e36f3c-24c3-4383-9ef9-284c91b400b4
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Compere, Geoffrey
3fc78084-3b86-46f8-9611-4ae05786aacf
Honet, Loic, Kuchler, Lorenzo Maximilian, Pound, Adam and Compere, Geoffrey
(2026)
Transition-to-plunge self-force waveforms with a spinning primary.
Physical Review D, 113, [044051].
(doi:10.1103/sq6y-qv8h).
Abstract
With the upcoming third-generation gravitational-wave detectors comes the need to build complete, faithful, and fast waveform models for asymmetric-mass-ratio compact binaries. Most efforts within the self-force community have focused on modeling these binaries’ inspiral regime, but for ground-based detectors the systems’ final merger can represent the dominant part of the signal. Recent work by three of us has extended the multiscale self-force framework through the transition-to-plunge and merger-ringdown regimes for nonspinning binaries. In this paper, we generalize the next-to-next-to-leading-order transition-to-plunge waveform model to include the spin of the primary black hole. We also improve the construction of composite inspiral-transition waveform models by performing a change of variables on the binary’s mechanical phase space during the transition to plunge. We provide detailed discussions of our numerical implementation and comparisons with numerical relativity simulations.
Text
Leading_order_composite_waveforms_in_Kerr_geometry
- Accepted Manuscript
More information
Accepted/In Press date: 28 January 2026
e-pub ahead of print date: 23 February 2026
Identifiers
Local EPrints ID: 509702
URI: http://eprints.soton.ac.uk/id/eprint/509702
ISSN: 2470-0010
PURE UUID: d9d8d0fc-e84f-4974-a1ff-0e6901b4ad2d
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Date deposited: 03 Mar 2026 17:36
Last modified: 04 Mar 2026 02:44
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Contributors
Author:
Loic Honet
Author:
Lorenzo Maximilian Kuchler
Author:
Geoffrey Compere
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