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Dinâmica de rotação de satélites naturais: os casos de Phobos, Enceladus e Ganimedes
(Universidade Estadual Paulista (Unesp), 2021-11-30)
O estudo da dinâmica rotacional de satélites naturais acompanha a Mecânica Celeste desde os primórdios e a cada dia se mostra mais relevante. A maioria dos chamados “satélites regulares” do Sistema Solar estão em estados ...
Semianalytical model for planetary resonances: Application to planets around single and binary stars
(EDP Sciences, 2021-02)
Context. Planetary resonances are a common dynamical mechanism acting on planetary systems. However, no general model for describing their properties exists, particularly for commensurabilities of any order and arbitrary ...
Classical and quantal aspects of resonant normal forms
(1993-12-01)
The Birkhoff-Gustavson normal form is employed to study separately chaos and resonances in a system with two degrees of freedom. In the integrable regime, tunnelling effects are appreciable when the nearest level spacings ...
Classical and quantal aspects of resonant normal forms
(1993-12-01)
The Birkhoff-Gustavson normal form is employed to study separately chaos and resonances in a system with two degrees of freedom. In the integrable regime, tunnelling effects are appreciable when the nearest level spacings ...
Nonlinear photoassociation through exotic orbits
(2021-07-01)
We investigate the effects of a particular kind of orbits, which we call exotic orbits, on the process of classical molecular photoassociation. As a starting model system, we consider the process described by the Morse ...
Lidov-Kozai stability regions in the α Centauri system
(EDP Sciences, 2017-09)
The stability of planets in the α Centauri AB stellar system has been studied extensively. However, most studies either focus on the orbital plane of the binary or consider inclined circular orbits. Here, we numerically ...
Dynamic portrait of the planetary 2/1 mean-motion resonance - I. Systems with a more massive outer planet
(WILEY-BLACKWELL, 2008)
We analyse the global structure of the phase space of the planar planetary 2/1 mean-motion resonance in cases where the outer planet is more massive than its inner companion. Inside the resonant domain, we show the existence ...
Long-term evolution and stability of Saturnian small satellites: Aegaeon, Methone, Anthe and Pallene
(2017-09-21)
Aegaeon, Methone, Anthe and Pallene are four Saturnian small moons, discovered by the Cassini spacecraft. Although their orbital characterization has been carried on by a number of authors, their long-term evolution has ...
A family of linear stable equilibria in the Sun-Earth-Sail problem
(2020-05-01)
The collinear libration point of the Sun-Earth Circular Restricted Three-Body Problem (CR3BP), L3 is located opposite to the Earth with respect to the Sun. Whereas several space missions have been launched to the other two ...