Comparison between self-force and post-Newtonian dynamics

Beyond circular orbits

Sarp Akcay, Alexandre Le Tiec, Leor Barack, Norichika Sago, Niels Warburton

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The gravitational self-force (GSF) and post-Newtonian (PN) schemes are complementary approximation methods for modeling the dynamics of compact binary systems. Comparison of their results in an overlapping domain of validity provides a crucial test for both methods and can be used to enhance their accuracy, e.g. via the determination of previously unknown PN parameters. Here, for the first time, we extend such comparisons to noncircular orbits - specifically, to a system of two nonspinning objects in a bound (eccentric) orbit. To enable the comparison we use a certain orbital-averaged quantity U

Original languageEnglish
Article number124014
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume91
Issue number12
DOIs
Publication statusPublished - Jun 3 2015

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circular orbits
eccentric orbits
orbits
orbitals
approximation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Comparison between self-force and post-Newtonian dynamics : Beyond circular orbits. / Akcay, Sarp; Le Tiec, Alexandre; Barack, Leor; Sago, Norichika; Warburton, Niels.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 91, No. 12, 124014, 03.06.2015.

Research output: Contribution to journalArticle

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