Gravitational Waveforms for Compact Binaries from Second-Order Self-Force Theory

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 tens of milliseconds. Although...

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Bibliographic Details
Published in:Physical review letters 2023-06, Vol.130 (24), p.241402-241402, Article 241402
Main Authors: Wardell, Barry, Pound, Adam, Warburton, Niels, Miller, Jeremy, Durkan, Leanne, Le Tiec, Alexandre
Format: Article
Language:English
Subjects:
Astrophysics
General Relativity and Quantum Cosmology
Physics
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Summary: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 tens of 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 modeling extreme-mass-ratio inspirals for the LISA mission and intermediate-mass-ratio systems currently being observed by the LIGO-Virgo-KAGRA Collaboration.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.130.241402