Collision of the comet Shoemaker-Levy 9 with Jupiter: Interpretation of observed data

Details Collision of the comet Shoemaker-Levy 9 with Jupiter: Interpretation of observed data Collision of the comet Shoemaker-Levy 9 with Jupiter: Interpretation of observed data

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994em%26p...66...99g&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 66, no. 1, p. 99-128

Physics

7

Cometary Atmospheres, Cometary Collisions, Electromagnetic Fields, Jupiter (Planet), Jupiter Atmosphere, Planetary Limb, Shoemaker-Levy 9 Comet, Auroras, Comet Nuclei, Decametric Waves, Gas Ionization, Shock Waves

Scientific paper

In July 1994 the pieces of the Shoemaker-Levy 9 comet bombarded Jupiter. We study the dynamics of destruction and braking of a fragment of the Shoemaker-Levy comet in the atmosphere and then we use these results to interpret the observed data. If a fragment does not penetrate deep into the atmosphere, the nonhomogeneity of the Jovian atmosphere has a determining influence on the propagation of the shock wave caused by the explosion of the piece. The upward motion of the shock wave, in the direction of decreasing density, results in the shock wave acceleration. In addition a layer of heated highly-ionized gas is ejected in the upper Jovian atmosphere, which in our opinion is responsible for a number of the observed phenomena in the ionosphere and magnetosphere of Jupiter. In particular, from this standpoint we can explain the flashes of optical radiation on the edge of the Jovian limb and variations in the intensity of decameter and decimeter radio frequency radiation of Jupiter, which were observed as the fragments entered the atmosphere.

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