One-dimensional calculations of a large impact on Uranus

Details One-dimensional calculations of a large impact on Uranus One-dimensional calculations of a large impact on Uranus

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...84..528k&link_type=abstract

Icarus (ISSN 0019-1035), vol. 84, April 1990, p. 528-541.

Computer Science

24

Impact Loads, Meteoritic Damage, Uranus (Planet), Angular Momentum, Ejecta, Planetary Geology, Radial Velocity, Radiative Transfer, Uranus, Impacts, Obliquity, Angular Momentum, Parameters, Hydrodynamics, Impact Effects, Atmosphere, Core, Heating, Energy, Mass, Velocity, Radius

Scientific paper

One-dimensional, spherically symmetric hydrodynamic calculations of the effect of the impact of a 1-2 earth mass body on the gaseous envelope of Uranus, characterizing the impact as a partition of energy such that a fraction is deposited directly into the envelope, while the rest heats the core. A sharp transition is found between the cases of nearly-complete retention and dispersal, corresponding to energy-deposition values above or below a critical value. Within a realistic parameter range, the angular momentum of the Uranus system may be explained, together with the retention of a gaseous envelope of about 1 earth mass.

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