Post-adiabatic waveform-generation framework for asymmetric precessing binaries

TL;DR

This paper presents a comprehensive waveform-generation framework for asymmetric precessing binaries with spinning secondaries, incorporating first post-adiabatic order effects using gravitational self-force theory, applicable to generic orbital configurations.

Contribution

It introduces a complete 1PA waveform-generation scheme for generic precessing binaries, utilizing a Fermi-Walker frame and recent self-force results, advancing modeling capabilities.

Findings

Waveform-generation scheme applicable to eccentric, precessing binaries.

Utilization of Fermi-Walker frame for secondary spin parametrization.

All relevant spin effects at 1PA order can be computed without local self-force evaluations.

Abstract

Recent years have seen rapid progress in calculations of gravitational waveforms from asymmetric compact binaries containing spinning secondaries. Here we outline a complete waveform-generation scheme, through first post-adiabatic order (1PA) in gravitational self-force theory, for generic secondary spin and generic (eccentric, precessing) orbital configurations around a generic Kerr primary. We emphasize the utility of a Fermi-Walker frame in parametrizing the secondary spin, and we analyse precession and nutation effects in the spin-orbit dynamics. We also explain convenient gauge choices within the waveform-generation scheme, and the gauge invariance of the resulting waveform. Finally, we highlight that, thanks to recent results due to Grant and Witzany et al., all relevant spin effects at 1PA order can now be computed without evaluating local self-forces or torques.