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Equatorial stability analysis of dust particle orbits within a charged rotating disc of dust

David Rumler*

  • *Contact author: david.rumler@uni-jena.de
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Phys. Rev. D 112, 124084 – Published 29 December, 2025

DOI: https://doi.org/10.1103/sg66-2zp1

Abstract

Stability of circular orbits of the dust particles within a charged rotating disc of dust with respect to perturbations in the equatorial plane is analyzed. Within Einstein-Maxwell theory, the charged rotating disc of dust is an axisymmetric, stationary solution given in terms of a post-Newtonian expansion. The disc solution is characterized by a rigid rotation around the axis of symmetry and a constant specific charge ε. It is found that for ε<1 all realized dust particle orbits are stable and for ε=1 all dust particles are in marginally stable states.

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References (21)

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Phys. Rev. D 112, 124084– Published 29 December, 2025
  • Received 3 August 2025
  • Accepted 4 December 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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