Nebular gas drag and planetary accretion

Details Nebular gas drag and planetary accretion Nebular gas drag and planetary accretion

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..106..288k&link_type=abstract

Icarus, vol. 106, p. 288

Other

50

Accretion Disks, Protoplanets, Solar Corona, Planetary Evolution, Nebulae, Aerodynamic Drag, Gas Density, Reynolds Number, Orbital Resonances (Celestial Mechanics)

Scientific paper

A study is conducted of planetesimal orbital velocities when gas drag-induced decay in the primordial nebula leads then into a sunward spiral and an approach to a growing planet that lies on a circular orbit unaffected by gas drag. It is found that the stability of resonance locks depends on such factors as the strength of the given resonance and the proximity of other resonances. A realistic solid planet with a dense atmosphere that can trap planetesimals may be able to accrete a large fraction of approaching planetesimals.

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