Astronomy and Astrophysics – Astronomy
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004dda....35.0504l&link_type=abstract
American Astronomical Society, DDA meeting #35, #05.04; Bulletin of the American Astronomical Society, Vol. 36, p.856
Astronomy and Astrophysics
Astronomy
Scientific paper
The long term evolution of the spin axis of the terrestrial planets strongly depends on the gravitational perturbations from all the planets of the Solar System that create a large chaotic zone for their obliquity. Over the age of the Solar System, it is also necessary to take into account various dissipative effects that are usually not very well known (body and atmospheric tides, core-mantle friction), and that can change in a large amount the spin rate and orientation of the planet. In this talk, I will review the recent studies that we conducted on all Terrestrial planets (Mercury, Venus, Earth, and Mars), in order to better understand their spin evolution over the age of the Solar System.
Acknowledgement: This study benefited from support from PNP-CNRS, IDRIS-CNRS, and CS, Paris Observatory.
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