DDA 33rd Meeting, Mt. Hood, OR, April 2002
Session 7. Posters
Monday, April 22, 2002, 7:00pm

[Previous] | [Session 7] | [Next]

[7.11] Coupled orbital-rotational-viscoelastic models of the Galilean satellites

S. Musotto (UCLA-Dept. Astronomy Padua), F. Varadi, W. Moore, G. Schubert (IGPP-UCLA)

We present detailed, but conceptually simple models of the interactions between orbital, rotational and viscoelastic dynamics for the Galilean satellites. The three-dimensional orbital model includes perturbations due to Jupiter's shape, the Sun and Saturn, along with the gravitational attractions among the satellites. The latter are assumed to be deformable and modeled as multilayered viscoelastic bodies. The equations of orbital and rotational motions are coupled to each other and also to the time-dependent gravity fields of the satellites. The viscoelastic models are formulated in frames which represent the average rotational-precessional motions of each satellite. The actual rotational dynamics also allows for time-dependent moments of inertia. Since the shortest dynamical time scale is orbital, the equations can be integrated efficiently with splitting schemes.

If you would like more information about this abstract, please follow the link to http://geodyn.ess.ucla.edu/~musotto. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: musotto@ess.ucla.edu

[Previous] | [Session 7] | [Next]

Bulletin of the American Astronomical Society, 34, #3
© 2002. The American Astronomical Society.