Solar system chaos and the distribution of asteroid orbits

Details Solar system chaos and the distribution of asteroid orbits Solar system chaos and the distribution of asteroid orbits

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.277..497m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 277, Issue 2, pp. 497-501.

Astronomy and Astrophysics

Astronomy

7

Chaos, Minor Planets, Asteroids, Solar System: General

Scientific paper

We describe results from numerical simulations to follow the orbits of hundreds of test particles that originate from low-inclination orbits in the terrestrial domain, in a model of the Solar system which includes all major planets. Our 3-Myr integration shows that a general feature of the asteroidal trajectories is a large Liapunov exponent, i.e. the orbits are chaotic with an astronomically short e-folding time for deviations. An exception to this is the region in which the real asteroids are found. Our computations also explain the low number of asteroids in the interplanetary region of the terrestrial planets. We confirm the results of other investigators concerning the Liapunov exponent of the Solar system itself: from a 200-Myr integration of the entire Solar system, an e-folding time of about 6Myr is obtained.

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