Numerical Modeling of the 2009 Impact Event on Jupiter

Details Numerical Modeling of the 2009 Impact Event on Jupiter Numerical Modeling of the 2009 Impact Event on Jupiter

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1434p&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1434

Computer Science

Scientific paper

We have studied penetration depth and plume formation of the 2009 Jovian impact event using the ZEUSMP 2 hydrodynamics code. We compare these 3D models with those of the 1994 Shoemaker-Levy 9 (SL9) event on Jupiter. We find that the 2009 impactor, which likely collided at a shallower angle, produced a narrower, slower plume, yet possessed a similar "pinch-off" point to that of the SL9 event. These slower speeds could explain the observed lack of atmospheric disturbance below the 10 mbar level in the 2009 event. The 2009 impactor did not penetrate as far into Jupiter as the SL9 impactors but went deep enough to explain ammonia observations. Our simulations show striking differences between the 2009 and SL9 events, and we are currently exploring more of the observationally constrained parameter space of the 2009 event to fully explore the extent of these differences.

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