The Composition of Saturn's Rings

Details The Composition of Saturn's Rings The Composition of Saturn's Rings

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002icar..160..350p&link_type=abstract

Icarus, Volume 160, Issue 2, p. 350-358.

Computer Science

19

Scientific paper

A composite spectrum between 0.30 and 4.05 μm of Saturn's rings is analyzed using the Shkuratov scattering theory (Shkuratov et al. 1999, Icarus137, 235-246). Several types of surface and composition are discussed. We demonstrate that both the strong reddening over the interval 0.3-0.7 μm and the water ice absorption features are well reproduced by an intimate (``salt-and-pepper'') mixture of four coarse particles of two different materials: 93% are grains (typical sizes of 10, 200, and 2000 μm) of water ice containing a few percent of refractory organic solid (tholin) impurities within their bulk, and 7% are coarse grains of a dark material (amorphous carbon). The cosmogenic implications of the inferred composition are discussed.

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