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Journal Articles Physical Review Letters Year : 2023

Gravitational waveforms for compact binaries from second-order self-force theory

Barry Wardell
  • Function : Author
Adam Pound
  • Function : Author
Niels Warburton
  • Function : Author
Jeremy Miller
Leanne Durkan
  • Function : Author

Abstract

We produce gravitational waveforms for nonspinning compact binaries undergoing a quasicircular inspiral. Our approach is based on a two-timescale expansion of the Einstein equations in second-order self-force theory, which allows first-principles waveform production in milliseconds. Although the approach is designed for extreme mass ratios, our waveforms agree remarkably well with those from full numerical relativity, even for comparable-mass systems. Our results will be invaluable in accurately modelling extreme-mass-ratio inspirals for the LISA mission and intermediate-mass-ratio systems currently being observed by the LIGO-Virgo-KAGRA Collaboration.

Dates and versions

hal-03515399 , version 1 (06-01-2022)

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Barry Wardell, Adam Pound, Niels Warburton, Jeremy Miller, Leanne Durkan, et al.. Gravitational waveforms for compact binaries from second-order self-force theory. Physical Review Letters, 2023, 130 (24), pp.241402. ⟨10.1103/PhysRevLett.130.241402⟩. ⟨hal-03515399⟩
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