Other
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...47..470f&link_type=abstract
(International Astronomical Union and American Astronomical Society, Colloquium on Comets: Gases, Ices, Grains, and Plasma, 61st
Other
82
Comets, Cosmology, Dynamic Models, Gravitational Effects, Neptune (Planet), Planetary Evolution, Uranus (Planet), Damping, Inelastic Collisions, Interplanetary Space, Planetary Mass, Planetary Orbits, Scattering, Terrestrial Planets, Source, Time Dependency, Cometesimals, Comets, Dynamics, Observations, Swarms, Evolution, Gravity Effects, Protoplanets, Analysis, Accretion, Uranus, Neptune, Planets, Formation, Orbits, Perturbations, Scattering, Mass, Regions, Models, Data, Distribution, Perihelion, Distance,
Scientific paper
The dynamical evolution of bodies under the gravitational influence of the accreting proto-Uranus and proto-Neptune is investigated in order to analyze the interrelations between the accretion of Uranus and Neptune with other processes of cosmogonical importance. Starting with a mass ratio of 0.1, Uranus and Neptune acquire masses close to their present ones in a time scale of 10 to the 8th years. Neptune is found to be the most important contributor of comets to the cometary reservoir. The time scale of bodies scattered by Neptune to reach near-parabolic orbits is about 10 to the 9th years. The contribution of Uranus was partially inhibited because a large part of the residual bodies of its accretion zone fell under the strong gravitational influence of Jupiter and Saturn. A significant fraction of the bodies dispersed by Uranus and Neptune reached the region of the terrestrial planets in a time scale of some 10 to the 8th years.
Fernández Antonio J.
Huen Ip Wing
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