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Near-infrared spectrophotometry of the satellites and rings of Uranus

Soifer, B. T. and Neugebauer, G. and Matthews, K. (1981) Near-infrared spectrophotometry of the satellites and rings of Uranus. Icarus, 45 (3). pp. 612-617. ISSN 0019-1035.

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New spectrophotometry from 1.5 to 2.5 μm is reported for the Uranian satellites Titania, Oberon, and Umbriel. A spectrum of the rings of Uranus from 2.0 to 2.4 μm is also reported. No evidence is found for frost covering the surface of the ring material, consistent with the low albedo of the rings (P_K = 0.03) previously reported by Nicholson and Jones (1980). The surfaces of the satellites are found to be covered by dirty water frost. Assuming albedos of the frost and gray components covering the Uranian satellites to be the same as the light and dark faces of Iapetus, radii are derived that are roughly twice those inferred from the assumption of a visual albedo of 0.5.

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Additional Information:© 1981 Elsevier Inc. Received 24 November 1980, Revised 10 February 1981. We thank Juan Carrasco for assistance with the observations. This research was supported by grants from NASA.
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Issue or Number:3
Record Number:CaltechAUTHORS:20170228-085142491
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Official Citation:B.T. Soifer, G. Neugebauer, K. Matthews, Near-infrared spectrophotometry of the satellites and rings of Uranus, Icarus, Volume 45, Issue 3, 1981, Pages 612-617, ISSN 0019-1035, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74582
Deposited By: Tony Diaz
Deposited On:28 Feb 2017 18:44
Last Modified:03 Oct 2019 16:40

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