Search Publications

Dynamics of two satellites in the 2/1 Mean–Motion resonance: application to the case of Enceladus and Dione

Yokoyama, T.; Callegari, N.

The dynamics of a pair of satellites similar to Enceladus–Dione is investigated with a two-degrees-of-freedom model written in the domain of the planar general three-body problem. Using surfaces of section and spectral analysis methods, we study the phase space of the system in terms of several parameters, including the most recent data. A detaile…

Strands and braids in narrow planetary rings: a scattering system approach

Merlo, Olivier; Benet, Luis

We address the occurrence of narrow planetary rings and some of their structural properties, in particular when the rings are shepherded. We consider the problem as Hamiltonian scattering of a large number of non-interacting massless point particles in an effective potential. Using the existence of stable motion in scattering regions in this set u…