Physics
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...438..957f&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 438, no. 2, p. 957-967
Physics
17
Cloud Cover, Fragments, Jupiter (Planet), Jupiter Atmosphere, Shoemaker-Levy 9 Comet, Ablation, Atmospheric Physics, Energy Transfer, Evaporation, Hydrodynamics
Scientific paper
Studies of the entry of fragments of comet Shoemaker-Levy 9 into the atmosphere of Jupiter give conflicting predictions as to whether or not most of the energy is deposited above the clouds. Using analytical models, we find that for a typical fragment radius of 1.5 km, both deceleration and mass loss (ablation) are negligible above the 1 bar level, so most of the energy will be deposited below the clouds, where radiation is blocked from escaping. The bulk of the energy produced by entering fragments will be observable only if the energy deposited below the clouds is transported above the clouds by means other than radiation. We provide new calculations of the flattening of fragments by ram pressure, of radiation-driven evaporative ablation and of ablation of droplets formed by Kelvin-Helmholtz instability.
Ferrara Andrea
Field George B.
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