Orbital resonances and planetary formation sites

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Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982icar...49..313t&link_type=abstract

Icarus, vol. 49, Mar. 1982, p. 313-326.

Computer Science

11

Orbital Mechanics, Orbital Resonances (Celestial Mechanics), Planetary Evolution, Protoplanets, Solar Orbits, Solar System, Jupiter (Planet), Radial Distribution, Resonance

Scientific paper

A cascaded resonance structure where planetesimal growth was accelerated at 2:1 interior and 1:2 exterior resonances, with an early-formed Jupiter producing runaway growth of planetary embryos, is hypothesized in a solar system formation model. The planetary embryos produce their own resonances, and these in turn lead to additional embryos in a process that successively propagates inwardly and outwardly to generate a resonant configuration of embryos. The early presence of Jupiter would in this way have imposed a harmonic structure on the accumulating planetesimal swarm. The positions of the planetary embryos can be moved into a degree of agreement with most of the present planetary positions which is comparable to that given by the Titius-Bode law, for the case of an accretion disk whose surface density obeys a power law of index -1.2.

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