On the stability of Laplace resonance for Galilean moons (Io, Europa, Ganymede)

ERSHKOV, S.; LESHCHENKO, D.

Авторы: ERSHKOV SERGEY, LESHCHENKO DMYTRO
Журнал: Anais da Academia Brasileira de Ciencias
Том: 93
Номер: 4
Год издания: 2021
Издательство: Academia Brasileira de Ciencias
Местоположение издательства: Brazil
Первая страница: 1
Последняя страница: 8
Номер статьи: e20201016
DOI: 10.1590/0001-3765202120201016
Аннотация: This paper presents the application of recent ansatz for estimation of stability of the Laplace resonance for Galilean moons (Io, Europa, Ganymede). We estimate over time the eccentricity + semi-major axis in a binary system experiencing the net tidal friction, including the additional tidal heating which comes from the transformation of net transfer of angular momentum between the Galilean moons of Jupiter (due to dynamical features of the Laplace resonance). Presumably, there should be a net transfer of angular momentum between Io and Europa (for the reason that tidal heating on Ganymede seems to be negligible with respect to Io and Europa). We established the fact that Laplace resonance should be valid and stable on a timescale of centuries in the future, but there might be chaotic perturbations less than 0.1% for the accuracy of such phenomenon. Moreover, the presented ansatz can be used to predict a scheme for optimizing the maneuvers of spacecrafts in the vicinity of Ganymede (due to absence of net transfer of angular momentum between Ganymede and other Galilean moons).The main conclusion stems from previously suggested approach (Ershkov 2017a) is that there is a net transfer of angular momentum between Io and Europa, which results in the tidal heating. The main results are also relevant in view of the future mission for the icy moons of Jupiter.
Добавил в систему: Ершков Сергей Владимирович

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On the stability of Laplace resonance for Galilean moons (Io, Europa, Ganymede)статья