Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..134w&link_type=abstract
In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 134-136 (SEE N85-23474 13-91)
Physics
1
Capture Effect, Jupiter (Planet), Orbital Resonances (Celestial Mechanics), Protoplanets, Resonance, Solar Corona, Spacecraft Orbits, Stellar Mass Accretion, Asteroids, Equations Of Motion, Evolution (Development), Interplanetary Dust, Perturbation
Scientific paper
Planetesimal orbital evolution in a resisting medium near an accreting protoplanet was studied to explore mechanisms for capture into Trojan and satellite orbits. Various mechanisms for capture into libration were proposed, e.g., increase in Jupiter/Sun mass ratio, change in Jovian orbital radius, and collisions of asteroids with interplanetary dust. Studies include effects of solar nebula gas drag on orbital evolution. In general, the gas deviates from Keplerian motion, causing secular decay of planetesimal orbits, as well as damping eccentricity. The motion of bodies near Jupiter under the effect of a resisting medium was numerically explored. The equations of motion were integrated using the formalism of the planar restricted three body problem, modified to include effects by gas drag and a growing Jupiter.
Davis Donald R.
Weidenschilling Stuart J.
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