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Kirkwood Gaps and Resonant Groups

Published online by Cambridge University Press:  19 July 2016

Sylvio Ferraz-Mello
Sylvio Ferraz-Mello*
Affiliation:
Instituto Astronômico e Geofísico, Universidade de São Paulo, Caixa Postal 9638, São Paulo, SP, Brasil. E-mail SYLVIO@IAG.USP.ANSP.BR

Abstract

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This paper is a short review of the dynamics of the asteroidal resonances as currently determined from maps and simulations over 106 – 107 years. The main recent results concern the extensive exploration of the phase space to determine domains of initial conditions leading to close approaches to the inner planets, the topological dynamics of the planar Sun-Jupiter-asteroid problem at very high eccentricities and the differences amongst 2/1 and 3/2 resonances able to explain the existence of a gap in the asteroidal belt at the 2/1 resonance and of a group of asteroids in the 3/2 resonance. Current results point to a confirmation of Wisdom's theory for the formation of the gaps by gravitational evolution and scattering by the inner planets.

Type
Dynamics
Information
Symposium - International Astronomical Union , Volume 160: Asteroids, Comets, Meteors 1993 , 1994 , pp. 175 - 188
Copyright
Copyright © Kluwer 1994 

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