000004663 001__ 4663
000004663 005__ 20200127162937.0
000004663 037__ $$aPOSTER-2020-0036
000004663 100__ $$aBeuthe, Mikael
000004663 245__ $$aTitan’s shell thickness
000004663 260__ $$c2019
000004663 269__ $$c2019-12-10
000004663 500__ $$aAGU poster reference: P23D-3523
000004663 520__ $$aIn a ten year span, the spacecraft Cassini made nine gravity passes among a total of 124 flybys of Titan. The resulting Doppler data have recently been interpreted in terms of a gravity field solution up to harmonic degree and order 5. With its global shape expanded up to degree and order 8, Titan is the icy satellite with the best-known gravity and topography. The simultaneous analysis of these datasets is typically used to constrain the internal structure, in particular the thickness of the icy shell overlying the subsurface ocean. Titan’s gravity anomalies are strongly compensated, which could be explained by a thin shell in isostatic equilibrium, whereas the weak correlation between gravity and topography suggests internal heterogeneities maintained by a sufficiently thick shell. On the basis of these two observations, we shall constrain the thickness of the icy shell.
000004663 536__ $$aBelgian PRODEX program managed by ESA in collaboration with the Belgian Federal Science Policy Office/$$cBelgian PRODEX program managed by ESA in collaboration with the Belgian Federal Science Policy Office/$$fBelgian PRODEX program managed by ESA in collaboration with the Belgian Federal Science Policy Office
000004663 594__ $$aNO
000004663 6531_ $$aTitan
000004663 6531_ $$agravity
000004663 6531_ $$acrust
000004663 6531_ $$amoment of inertia
000004663 700__ $$aRivoldini, Attilio
000004663 773__ $$tAmerican Geophysical Union Fall Meeting 2019, San Francisco
000004663 8560_ $$fmikael.beuthe@observatoire.be
000004663 85642 $$ahttps://agu.confex.com/agu/fm19/meetingapp.cgi/Paper/493030
000004663 980__ $$aCPOSTER