English

On retrograde orbits, resonances and stability

Earth and Planetary Astrophysics 2022-06-10 v1

Abstract

We start by reviewing our previous work on retrograde orbital configurations and on modeling and identifying retrograde resonances. Then, we present new results regarding the enhanced stability of retrograde configurations with respect to prograde configurations in the low mass ratio regime of the planar circular restricted 3-body problem. Motivated by the recent discovery of small bodies which are in retrograde resonance with the Solar System's giant planets we then explore the case with mass ratio 0.001 and show new stability maps in a grid of semi-major axis versus eccentricity for the 2/1 and 1/2 retrograde resonances. Finally, we explain how the stability borders of the 2/1 and 1/2 retrograde resonances are related to the resonant orbits' geometry.

Keywords

Cite

@article{arxiv.2206.04628,
  title  = {On retrograde orbits, resonances and stability},
  author = {M. H. M. Morais and F. Namouni},
  journal= {arXiv preprint arXiv:2206.04628},
  year   = {2022}
}

Comments

12 pages, 6 figures

R2 v1 2026-06-24T11:45:27.266Z