A numerical criterion evaluating the robustness of planetary architectures; applications to the υ Andromedæ system [article]

Ugo Locatelli, Chiara Caracciolo, Marco Sansottera, Mara Volpi
2022 arXiv   pre-print
We revisit the problem of the existence of KAM tori in extrasolar planetary systems. Specifically, we consider the υ Andromedæ system, by modelling it with a three-body problem. This preliminary study allows us to introduce a natural way to evaluate the robustness of the planetary orbits, which can be very easily implemented in numerical explorations. We apply our criterion to the problem of the choice of a suitable orbital configuration which exhibits strong stability properties and is
more » ... le with the observational data that are available for the υ Andromedæ system itself.
arXiv:2202.08616v1 fatcat:yfk6vbdbmrb27fac3uupaq4qum