The chaotic obliquity of Mars

Details The chaotic obliquity of Mars The chaotic obliquity of Mars

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sci...259.1294t&link_type=abstract

Science (ISSN 0036-8075), vol. 259, no. 5099, p. 1294-1297.

Physics

143

Chaos, Mars (Planet), Planetary Orbits, Equations Of Motion, Numerical Integration, Solar System Evolution, Spin Dynamics, Spin-Orbit Interactions, Mars, Obliquity, Chaos, Numerical Methods, Oscillations, Motion, Rotation, Resonance, Celestial Mechanics, Evolution, Spin, Orbits, Models, Dynamics, Parameters

Scientific paper

The discovery (by Laskar, 1989, 1990) that the evolution of the solar system is chaotic, made in a numerical integration of the averaged secular approximation of the equations of motions for the planets, was confirmed by Sussman and Wisdom (1992) by direct numerical integration of the whole solar system. This paper presents results of direct integrations of the rotation of Mars in the chaotically evolved planetary system, made using the same model as that used by Sussman and Wisdom. The numerical integration shows that the obliquity of Mars undergoes large chaotic variations, which occur as the system evolves in the chaotic zone associated with a secular spin-orbit resonance.

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