Behaviour of a two-planetary system on a cosmogonic time-scale

Details Behaviour of a two-planetary system on a cosmogonic time-scale Behaviour of a two-planetary system on a cosmogonic time-scale

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005dpps.conf..107k&link_type=abstract

Dynamics of Populations of Planetary Systems, Proceedings of IAU Colloquium #197, held 31 August - 4 Spetember, 2004 in Belgrade

Physics

1

Celestial Mechanics, Methods: Analytical, Methods: Numerical, Planets And Satellites, Jupiter, Saturn.

Scientific paper

The orbital evolution of planetary systems similar to our Solar one represents one of the most important problems of Celestial Mechanics. In the present work we use Jacobian coordinates, introduce two systems of osculating elements, construct the Hamiltonian expansions in Poisson series for all the elements for the planetary three-body problem (including the problem Sun Jupiter Saturn). Further we construct the averaged Hamiltonian by the Hori Deprit method with accuracy up to second order with respect to the small parameter, the generating function, the change of variables formulae, and the right-hand sides of the averaged equations. The averaged equations for the Sun Jupiter Saturn system are integrated numerically over a time span of 10 Gyr. The Liapunov Time turns out to be 14 Myr (Jupiter) and 10 Myr (Saturn).

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