A discussion on impact models of the Shoemaker-Levy 9 fragments with Jupiter from some observational results

Details A discussion on impact models of the Shoemaker-Levy 9 fragments with Jupiter from some observational results A discussion on impact models of the Shoemaker-Levy 9 fragments with Jupiter from some observational results

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997p%26ss...45.1279m&link_type=abstract

Planetary and Space Science, Volume 45, Issue 10, p. 1279-1285.

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Starting from some observable features following the collision of the Shoemaker-Levy 9 fragments with Jupiter (e.g. detection of sulfur in the stratosphere, aerosols of the cometary debris, impact site geometry), different entry and fireball models are compared. In addition to the results obtained by other authors, results obtained from observations at the William Herschel Telescope at La Palma, Spain, are used in particular those concerning the H, G and E/F impacts. Analytical models are mostly discussed, although some results of computational models are also considered for comparison. It is concluded that the fragments were equal or less than 500 m in diameter, they penetrated near or under the 1 bar level, but always above the water cloud level. Considering their density of 0.6 (0.2) g cm-3, the diameter before entry was 600 (850) m, its maximum density after compression was at 9 (17) km above the 1 bar level. Hydrodynamic instabilities (Rayleigh-Taylor and/or Kelvin-Helmholtz) fragmented the bolide between 1 and 5 bar. Some conclusions relative to the stratospheric aerosols are also made.

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