Migration of bodies during the process of planet accumulation

Details Migration of bodies during the process of planet accumulation Migration of bodies during the process of planet accumulation

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993avest..27...83i&link_type=abstract

Astronomicheskii Vestnik (ISSN 0320-930X), vol. 27, no. 1, p. 83-101.

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2

Accretion Disks, Planetary Evolution, Planetary Mass, Protoplanets, Stellar Mass Accretion, Computerized Simulation, Giant Stars, Hyperbolic Trajectories, Stellar Mass Ejection, Terrestrial Planets

Scientific paper

Results of computer simulations of the evolution of disks that originally consisted of hundreds of gravitating solid bodies in motion around the sun are reported. It was found that each terrestrial planet incorporated planetisimals from the feeding zones of all terrestrial planets. The embryotic masses of the unformed terrestrial planets may have exceeded 0.1 m_\opus. Most planetesimals in the zones of Uranus and Neptune migrated toward Jupiter, which ejected them into hyperbolic orbits. The semimajor axis of the orbit of Jupiter may have been shortened by 0.5 AU and those of the other planets may have been increased significantly. The embryos of Uranus and Neptune may have originated near the orbit of Saturn.

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