Observables for bound orbital motion in axially symmetric space-times

Eva Hackmann and Claus Lämmerzahl
Phys. Rev. D 85, 044049 – Published 22 February 2012

Abstract

The periastron shift and the Lense-Thirring effect of bound orbital motion in a general axially symmetric space-time given by Plebański and Demiański are analyzed. We also define a measure for the conicity of the orbit and give analytic expressions for the observables in terms of hyperelliptic integrals and Lauricella’s FD function. For an interpretation of these analytical expressions, we perform a post-Schwarzschild and a post-Newton expansion of these quantities. This clearly shows the influence of the different space-time parameters on the considered observables and allows one to characterize Kerr, Taub-NUT, Schwarzschild–de Sitter, or other space-times.

  • Received 9 December 2011

DOI:https://doi.org/10.1103/PhysRevD.85.044049

© 2012 American Physical Society

Authors & Affiliations

Eva Hackmann*

  • ZARM, University of Bremen, Am Fallturm, 28359 Bremen, Germany

Claus Lämmerzahl

  • ZARM, University of Bremen, Am Fallturm, 28359 Bremen, Germany and Institute for Physics, University Oldenburg, 26111 Oldenburg, Germany

  • *eva.hackmann@zarm.uni-bremen.de
  • claus.laemmerzahl@zarm.uni-bremen.de

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Issue

Vol. 85, Iss. 4 — 15 February 2012

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