Other
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dda....38.1307y&link_type=abstract
American Astronomical Society, DDA meeting #38, #13.07
Other
Scientific paper
In the beginning of the next decade, the European Space Agency (ESA) will launch a spacecraft called BepiColombo to Mercury. It is expected to be inserted in orbit in 2019. The onboard radio science experiment will provide a detailed mapping of the planet's gravity field and in particular Mercury's quadrupole field, which will be drastically improved with respect to the Mariner 10 solution. Tidal effects will also be deduced. Camera picture of surface spots will enable determination of the obliquity value and the 88-day libration amplitude.
All these quantities can be related to the interior of Mercury, like the presence of a liquid core, its size, and the light element concentration in the core. We shall present our theoretical results on the rotation of Mercury and compare with those of other teams. Our objectives are to model precisely the rotation, to characterize the Cassini state in which Mercury is expected to be, to compute the position of the Laplace plane and to study the implications on the interior of Mercury. The forced and free modes that can affect Mercury will be studied as well.
Dehant Véronique
Hoolst Tim Van
Yseboodt Marie
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