Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufm.p52a0481b&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #P52A-0481
Other
6022 Impact Phenomena, 6265 Planetary Rings
Scientific paper
Over the past decade, impact flashes have been observed on the moon and in the laboratory in both the IR and visible parts of the spectrum. These phenomena have been used to constrain impact parameters, such as impact velocity and composition. With the arrival of the Cassini spacecraft at Saturn in July 2004, we embark on a study of impact flashes in Saturn's rings. We begin by modeling high energy, hypervelocity impact events using CTH, a shock physics hydrodynamics code developed at Sandia National Laboratories. The simulated impacts involve two centimeter- to meter-sized icy bodies impacting each other at velocities over 30 km/s. Each body is composed of pure water ice and incorporated into the code using an ANEOS equation of state. The resulting impact-induced vapor plume is post-processed to consider its radiative evolution. The results of this study will be used as an aid to planning observational time on Cassini's Ultraviolet Imaging Spectrograph (UVIS).
Asphaug Erik
Bruesch Lindsey S.
Cuzzi Jeff N.
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