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Study of the rotation on extrasolar planetary systems and the implications in the orbital evolution


In this work we study the rotation and orbital dynamics of extrasolar planetary systems which evolve under tidal forces, mutual perturbations and terms associated to the permanent non-spherical shape of the interacting bodies. We intend to contribute to the recent progress in the field (see Rodríguez et al. 2012; Callegari & Rodríguez 2013), including additional terms to the equations of motion of the spin-orbit problem. The existing published works on rotational dynamics of exoplanets is still scarce, however, recent results have shown that the evolution of the rotation can have important implications in the resulting orbital evolution. The results will be obtained through the numerical simulation of the exact equations of motion, considering a variety of real planetary systems. With the aim of exploring a large number of system, physical parameters (masses, polar and equatorial permanent deformations, tidal lag) and initial orbital configurations, we will analyze the results of the averaged equations of motion. Particularly, we will investigate the temporary captures in spin-orbit resonances and the implications in the final orbital tidal evolution. Single and multi-planet systems will be studied, also considering those systems evolving under mean motion resonances, including the case of co-orbital motion. (AU)

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(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RODRIGUEZ, A.; CALLEGARI, JR., N.; CORREIA, A. C. M.. Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology. Monthly Notices of the Royal Astronomical Society, v. 463, n. 3, p. 3249-3259, . (13/21891-0, 13/16771-6)

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