Reorientation of the rotation axis of triaxial viscoelastic icy moons: Europa and Titan

Details Reorientation of the rotation axis of triaxial viscoelastic icy moons: Europa and Titan Reorientation of the rotation axis of triaxial viscoelastic icy moons: Europa and Titan

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1041j&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1041

Computer Science

Scientific paper

We provide an analysis of the rotational response of triaxial viscoelastic icy moons, focusing on the free rotational behavior of Europa and Titan. In a similar way as for terrestrial planets, the rotational behavior of icy moons is dominated by a secular shift of the pole and the periodic Chandler wobble. However, unlike terrestrial planets, the Chandler wobble of icy moons is associated with the viscoelastic response of the layers located below the ocean. The fast relaxation of low-viscous ice layers induces additional wobble frequencies. However, these wobbles are generally weak compared to the strength of the main Chandler wobble.

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