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On the stability around Chariklo and the confinement of its rings by Winter, S. M. Giuliatti; Madeira, G.; Ribeiro, T.; Winter, O. C.; Barbosa, G. O.; Borderes-Motta, G. is a scholarly article available to read on EtoBox.

What is On the stability around Chariklo and the confinement of its rings about?

Chariklo has two narrow and dense rings, C1R and C2R, located at 391 km and 405 km, respectively. In the light of new stellar occultation data, we study the stability around Chariklo. We also analyse three confinement mechanisms, to prevent the spreading of the rings, based on shepherd satellites in resonance with the edges of the rings. This study is made through a set of numerical simulations and the Poincar\'e surface of section technique. From the numerical simulation results we verify that, from the current parameters referring to the shape of Chariklo, the inner edge of the stable region is much closer to Chariklo than the rings. The Poincar\'e surface of sections allow us to identify the first kind periodic and quasi-periodic orbits, and also the resonant islands corresponding to the 1:2, 2:5, and 1:3 resonances. We construct a map of a versus e space which gives the location and width of the stable region and the 1:2, 2:5, and 1:3 resonances. We found that the first kind periodic orbits family can be responsible for a stable region whose location and size meet that of C1R, for specific values of the ring particles' eccentricities. However, C2R is located in an unstable regi

Author

Winter, S. M. Giuliatti; Madeira, G.; Ribeiro, T.; Winter, O. C.; Barbosa, G. O.; Borderes-Motta, G.

Published

2023

Language

EN