The Uranian satellites - Water ice on Ariel and Umbriel

Details The Uranian satellites - Water ice on Ariel and Umbriel The Uranian satellites - Water ice on Ariel and Umbriel

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...45..607c&link_type=abstract

Icarus, vol. 45, Mar. 1981, p. 607-611.

Computer Science

24

Ariel, Ice, Near Infrared Radiation, Oberon, Spectral Reflectance, Spectral Signatures, Umbriel, Albedo, Frost, Signature Analysis, Titania, Water, Uranus, Satellites, Water, Ariel, Umbriel, Infrared, Contamination, Reflectance, Spectrum, Surface, Bands, Observations, Frost, Mass, Ice, Albedo, Titania, Oberon, Diameter, Wavelengths, Data, Radius, Density

Scientific paper

New near-infrared reflectance spectra are presented for Ariel and Umbriel. Water ice on the surface of Ariel and Umbriel is verified from spectral signatures in the 2-micron region. However, the weaker bands in Umbriel's spectrum indicate that its surface is significantly different from Ariel either in degree of contamination with dark material or in microstate. Umbriel may have a lower albedo than Ariel, Titania, and Oberon and, therefore, may have a diameter comparable to that of Titania.

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