2013•DIAL (Catholic University of Leuven)Requires access
Titan's interior from Cassini-Huygens
Gabriel Tobie, Rose‐Marie Baland, Axel Lefevre, J. Monteux, Ondřej Čadek, G. Choblet, Giuseppe Mitri
Open publisher page 0 citations
Abstract
The Cassini-Huygens mission has brought many informations about Titan that can be used to infer its interior structure: the gravity field coefficients (up to degree 3, [1]), the surface shape (up to degree 6, [2]), the tidal Love number [1], the electric field [3], and the orientation of its rotation axis [4]. The measured obliquity and gravity perturbation due to tides, as well as the electric field, are lines of evidence for the presence of an internal global ocean beneath the ice surface of Titan [5,1,3]. The observed surface shape and gravity can be used to further constrain the structure of the ice shell above the internal ocean. The presence of a significant topography associated with weak gravity anomalies indicates that deflections of internal interface or lateral density variations may exist to compensate the topography.