Evolution of vortices formed in Jupiter’s atmosphere after the collision of the planet with Comet Shoemaker-Levy 9 |
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Authors: | F F Kamenets I I Korobov O G Onishchenko |
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Institution: | (1) Moscow Physicotechnical Institute, 141700 Dolgoprudnyi, Moscow District, Russia;(2) Institute of Space Research, Russian Academy of Sciences, 117810 Moscow, Russia |
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Abstract: | The evolution of disturbances formed in the Jovian atmosphere after the collision with large fragments of Comet Shoemaker-Levy
is investigated. Simplified equations for the evolution of large vortices in a shallow, horizontally inhomogeneous atmosphere
are derived taking account of the latitudinal nonuniformity of the zonal wind and also taking account of viscosity and heat
conduction. The results of the numerical simulation of the evolution of the vortices are in good agreement with observations
from the Hubble platform. It is shown that the evolution of the vortex structure depends strongly on the zonal wind velocity
field in the fall region of a comet fragment. The threshold energy of the initial disturbance at which large, long-lived vortices,
such as the Great Red Spot, can form is estimated to be E∼ 1024 ergs.
Pis’ma Zh. éksp. Teor. Fiz. 64, No. 5, 324–329 (10 September 1996) |
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