Are retrograde resonances possible in multi-planet systems?

  title={Are retrograde resonances possible in multi-planet systems?},
  author={Julie Gayon and Eric Bois},
  journal={Astronomy and Astrophysics},
Context. Most multi-planetary systems are characterized by hot-Jupiters close to their central star, moving on eccentric orbits. From a dynamical point of view, compact multi-planetary systems form a specific class of the general N-body problem (where N ≥ 3). Moreover, extrasolar planets are found in prograde orbits about their host star, and often in mean motion resonances (MMR). Aims. In a first step, we study theoretically a new stabilizing mechanism suitable for compact two-planet systems… 

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Retrograde resonances in compact multi-planetary systems: a feasible stabilizing mechanism
  • Julie Gayon, E. Bois
  • Physics, Geology
    Proceedings of the International Astronomical Union
  • 2007
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