Solving post-Newtonian accurate Kepler equation

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Abstract
We provide an elegant way of solving analytically the third post-Newtonian (3PN) accurate Kepler equation, associated with the 3PN-accurate generalized quasi-Keplerian parametrization for compact binaries in eccentric orbits. An additional analytic solution is presented to check the correctness of our compact solution and we perform comparisons between our PN-accurate analytic solution and a very accurate numerical solution of the PN-accurate Kepler equation. We adapt our approach to compute crucial 3PN-accurate inputs that will be required to compute analytically both the time and frequency domain ready-to-use amplitude-corrected PN-accurate search templates for compact binaries in inspiralling eccentric orbits.
Funding Information
  • H2020 European Research Council (StronGrHEP-690904)
  • Centre National d’Etudes Spatiales
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

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