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The diurnal libration and interior structure of Enceladus
Van Hoolst, T.; Baland, R.-M.; Trinh, A. (2016). The diurnal libration and interior structure of Enceladus. Icarus 277: 311-318. https://dx.doi.org/10.1016/j.icarus.2016.05.025
In: Icarus. Elsevier. ISSN 0019-1035; e-ISSN 1090-2643
Peer reviewed article  
Available in  Authors 
Author keywords
    Enceladus; Interiors; Rotational dynamics
Authors  Top 
  • Van Hoolst, T.
  • Baland, R.-M.
  • Trinh, A.
Abstract
    We determine constraints on the ice shell and ocean of Enceladus from the observed libration at orbital period by assessing the effects of uncertainties in the size, density, rigidity, and viscosity of the internal layers and of the non-hydrostatic structure on the libration. The observed libration amplitude implies that the average thickness of the ice shell is between 14 km and 26 km and that the ocean is 21 km to 67 km thick.
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