Gravitational waveforms for compact binaries from second-order self-force theory
ORAL
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.
*AP acknowledges support from a Royal Society University Research Fellowship, a Royal Society Research Fellows Enhancement Award, and a Royal Society Research Grant for Research Fellows. NW acknowledges support from a Royal Society - Science Foundation Ireland University Research Fellowship. This material is based upon work supported by the National Science Foundation under Grant Number 1417132. This work makes use of the Black Hole Perturbation Toolkit and SimulationTools.
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Presenters
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Niels Warburton
- University College Dublin
- Univ Coll Dublin