Gas drag in primordial circumplanetary envelopes - A mechanism for satellite capture

Details Gas drag in primordial circumplanetary envelopes - A mechanism for satellite capture Gas drag in primordial circumplanetary envelopes - A mechanism for satellite capture

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...37..587p&link_type=abstract

Icarus, vol. 37, Mar. 1979, p. 587-611.

Astronomy and Astrophysics

Astronomy

98

Astronomical Models, Drag, Natural Satellites, Orbit Calculation, Planetary Evolution, Nereid, Orbital Elements, Planetary Gravitation, Gases, Capture, Satellites, Models, Jupiter, Evolution, Parent Bodies, Fragmentation, Saturn, Neptune, Solar System, Orbits, Mars, Phobos, Terrestrial Planets, Gas Drag, Solar Nebula, Dynamics, Pressure, Fragments, Gravity, Collisions, Hypotheses, Iapetus, Nereid, Triton, Origin, Deimos, Dissipation

Scientific paper

Known properties of the current solar system and Bodenheimer's (1977) model of early Jovian evolution are employed to develop a mechanism for satellite capture based on gas drag in primordial circumplanetary envelopes. In particular, the deceleration and fragmentation of two parent bodies passing through an extended primordial Jovian nebula may account for the clusters of prograde and retrograde satellites of Jupiter. Subsequently, the fragments probably underwent limited orbital evolution, and were dispersed by collision with a stray body. The heavy element cores of the outer planets may also be due to primordial gas drag capture. Nebular drag capture of the Martian satellites Phobos and Deimos, Neptune's Nereid and Triton, and Saturn's Phoebe and Iapetus is also conceivable.

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