Dynamics of a particle under the gravitational potential of a massive annulus: properties and equilibrium description. (English) Zbl 1266.70039

Summary: This paper studies the main features of the dynamics around a massive annular disk. The first part addresses the difficulties finding an appropriated expression of the gravitational potential of a massive disk, which will be used to define the differential equations of motion of our dynamical system. The second part describes the main features of the dynamics with special attention to equilibrium of the system.


70K42 Equilibria and periodic trajectories for nonlinear problems in mechanics
70M20 Orbital mechanics
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