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Roush, Ted L.; Cruikshank, Dale P.; Pollack, James B.; Young, Eliot F.; Bartholomew, Mary J.
Icarus, January 1996, 1996-01-00, Letnik: 119, Številka: 1Journal Article
The spectral geometric albedos of Charon and Pluto are derived at near-infrared wavelengths (1.4–2.5 μm) from measurements obtained in 1987. Comparisons of these to theoretical calculations are used to place constraints on the identity and relative abundances of surface ices on Charon. These comparisons suggest that widespread regions of pure CH4ice do not occur on Charon and that if CH4is abundant on Charon then it is large grained (≈5 mm) and is likely mixed at the granular level with H2O ice, and possibly CO2ice.
