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Theory of the rotation of the Galilean satellites

Published online by Cambridge University Press:  03 November 2010

Benoît Noyelles
Benoît Noyelles*
Affiliation:
University of Namur – Dept of MathematicsRempart de la Vierge 8 – B-5000 Namur – Belgium and IMCCE (Paris Observatory, USTL, UPMC) – CNRS UMR 8028 77 avenue Denfert-Rochereau – 75014 Paris – France email: [email protected]
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Abstract

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As most of the natural satellites of the Solar System, the Galilean moons are since a long time assumed to be tidally locked in a spin-orbit synchronous resonance. Thanks to the mission Galileo, we now dispose of enough gravity data to perform 3-dimensional theories of the rotation of these satellites, in particular to model the departure from the exact synchronous rotation. We here present such theories depending on the interior model we consider, in highlighting some observable output data. Inverting them will give us information on the internal structure of these bodies.

Keywords

planets and satellites: general
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S269: Galileo's Medicean Moons: their impact on 400 years of discovery , January 2010 , pp. 240 - 244
Copyright
Copyright © International Astronomical Union 2010

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