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Fragmentation and Hydrodynamic Modeling of Jupiter Impacts

Presentation #322.21 in the session Comets (Poster)

Published onOct 23, 2023
Fragmentation and Hydrodynamic Modeling of Jupiter Impacts

In 1994 comet Shoemaker-Levy 9 (SL9) took the world by storm. It was marked as a “once in a lifetime” event, and was said to only happen once per century. Since 2009, however, nine more impacts have been captured on the giant planet. In 2013, a meteor exploded in the atmosphere near Chelyabinsk giving rise to the need for information regarding such airburst events including how they break apart upon entry and their effects on the atmosphere. By understanding how these bodies act on Jupiter, we can also gain a better understanding on how they act on Earth. For 8 of the more recent events (i.e. those that occurred between 2010 and 2021) only impact flashes have been captured by Earth-based telescopes, whereas for the smaller SL9 fragments Galileo, Hubble, and several ground telescopes returned ample amounts of data to provide important information about fragments G,H,K,L,N,Q1,R, and W. Our studies will use fragmentation modeling following Sankar et. al. (2020), as well as the ZEUS-MP 2 hydrodynamic code employed by Palotai et. al. (2011). We will use both of these for several of the SL9 fragments to provide experience and knowledge that we can further apply to the more recent impacts where we have little base knowledge on their initial parameters. We will focus on results such as the energy deposition of the impactors as well as their size, composition and terminal depth. Our latest findings will be shown.

References:

Palotai et. al. (2011) DOI: 10.1088/0004-637x/731/1/3

Sankar et. al. (2020) DOI: 10.1093/mnras/staa563

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