A numerical criterion evaluating the robustness of planetary architectures; applications to the υ Andromedæ system. Issue Volume 15:Issue S364(2019) (October 2021)

• Record Type: Journal Article
• Authors: Locatelli, Ugo; Caracciolo, Chiara; Sansottera, Marco; Volpi, Mara
• Editors: Celletti, Alessandra; Galeş, Cătălin; Beaugé, Cristian; Lemaître, Anne
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S364(2019)
• Page Start: 65
• Page End: 84
• Publication Date: 2021-10
• Subjects: Planetary Systems -- Celestial Mechanics; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921322000461
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: 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 compatible with the observational data that are available for the υ Andromedæ system itself.