Ray craters on the satellites of Jupiter and Saturn

Details Ray craters on the satellites of Jupiter and Saturn Ray craters on the satellites of Jupiter and Saturn

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1335w&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1335

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Scientific paper

Ray craters on the surfaces of planets and of their satellites are morphologically fresh impact features. They superimpose other geologic units which implies that they are stratigraphically young [1][2]. The preservation of craters with bright (or dark) rays is an indicator for the intensity of geological processes at more recent time, especially erosion and erosion rates. Rayed craters occur on terrestrial planets as well as on icy satellites in the outer solar system [1][2]. In this work we focus on bright rayed craters on icy satellites of Saturn and Jupiter in order (1) to date ray craters on high-resolution images by their superimposed crater frequencies and (2) to constrain stratigraphy and ages of older geologic units and more recent geological processes. (3) The morphology of ray craters and the possible occurrence of double or multiple impacts producing ray craters as discussed by, e.g., [3] infer impact conditions and impactor origins.

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