The rings of Chariklo under close encounters with the giant planets
R.A.N. Araujo, R. Sfair, O.C. Winter

TL;DR
This study uses numerical simulations to assess the stability of Chariklo's rings during close encounters with giant planets, finding that most rings remain stable despite frequent perturbations, suggesting such rings could be common.
Contribution
The paper provides the first detailed analysis of the stability of rings around a Centaur during close planetary encounters using extensive numerical simulations.
Findings
Over 90% of Chariklo-like systems retain their rings after close encounters.
Approximately 3% of clones lose their rings due to extreme encounters.
Close encounters often do not significantly disturb the rings, indicating potential commonality.
Abstract
The Centaur population is composed by minor bodies wandering between the giant planets and that frequently perform close gravitational encounters with these planets, which leads to a chaotic orbital evolution. Recently, the discovery of two well-defined narrow rings was announced around the Centaur 10199 Chariklo. The rings are assumed to be in the equatorial plane of Chariklo and to have circular orbits. The existence a well-defined system of rings around a body in such perturbed orbital region poses an interesting new problem. Are the rings of Chariklo stable when perturbed by close gravitational encounters with the giant planets? Our approach to address this question consisted of forward and backward numerical simulations of 729 clones of Chariklo, with similar initial orbits, for a period of 100 Myrs. We found, on average, that each clone suffers along its lifetime more than 150…
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