The solar system cratering record - Voyager 2 results at Uranus and implications for the origin of impacting objects

Details The solar system cratering record - Voyager 2 results at Uranus and implications for the origin of impacting objects The solar system cratering record - Voyager 2 results at Uranus and implications for the origin of impacting objects

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...70..517s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 70, June 1987, p. 517-535.

Computer Science

53

Chronology, Meteorite Craters, Natural Satellites, Planetary Craters, Uranus (Planet), Voyager 2 Spacecraft, Computerized Simulation, Mercury (Planet), Planetary Surfaces, Planetocentric Coordinates, Size Distribution, Uranus, Cratering, Spacecraft Observations, Voyager 2 Mission, Origin, Impacts, Age, Satellites, Oberon, Umbriel, Miranda, Titania, Ariel, Surface, Resurfacing, Abundance, Size, Density, Distribution, Orbits, Comparisons, Solar System, Planets, Computer Methods, Velocity, Source, Bombardment,

Scientific paper

The older of the two crater populations found in Uranus occurs on Oberon, Umbriel, and Miranda, while the younger encompasses Titania, Ariel, and the resurfaced areas of Miranda. Both crater populations may be due to accretional remnants in planetocentric orbits which evolved by means of natural collisions, so that the higher crater density of Miranda by comparison with Oberon and Umbriel suggest all three to have undergone early resurfacing. Solar system cratering data from Mercury to Uranus that have been subjected to computer simulations using the Holsapple-Schmidt (1982) crater scaling law in order to recover projectile diameters imply that there is no single family of objects, such as comets, in heliocentric orbits.

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