The impact of comet Shoemaker-Levy 9 on Jupiter

Details The impact of comet Shoemaker-Levy 9 on Jupiter The impact of comet Shoemaker-Levy 9 on Jupiter

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994shwav...4...47c&link_type=abstract

Shock Waves, Volume 4, Issue 1, pp.47-50

Statistics

Computation

18

Comet Shoemaker-Levy 9, Hypervelocity Impact, Jupiter

Scientific paper

We have performed computational shock-physics simulations of the hypervelocity (60 km/s) impact of 1 3 km, water-ice spheres entering a hydrogen-helium Jovian atmosphere. These conditions simulate the best current estimates for the collision of fragments of periodic comet Shoemaker-Levy 9 with Jupiter in July, 1994. We used the Eulerian shock-physics code CTH, and its parallel version PCTH to perform 2-D analyses of penetration and breakup, and 3-D analyses of the growth of the resulting fireball during the first 100 seconds after fragment entry. We can use our simulations to make specific predictions of the time interval between fragment entry and fireball arrival into line-of-sight from the earth. For a fragment larger than about 1 km, we believe that the time of fireball arrival above Jupiter's limb will be directly observable from earth. Measurements of this time by observers, in conjunction with our simulations, may allow mass of cometary fragments to be determined.

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