Identification of water ice on the Centaur 1997 CU26

Robert H. Brown, Dale P. Cruikshank, Yvonne Pendleton, Glenn J. Veeder

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36 Scopus citations

Abstract

Spectra of the Centaur 1997 CU26 were obtained at the Keck Observatory on 27 October 1997 (universal time). The data show strong absorptions at 1.52 and 2.03 micrometers attributable to water ice on the surface of 1997 CU26. The reflectance Spectrum of 1997 CU26 is matched by the spectrum of a mixture of low-temperature, particulate water ice and spectrally featureless but otherwise red-colored material. Water ice dominates the spectrum of 1997 CU26, whereas methane or methane-like hydrocarbons apparently dominate the spectrum of the Kuiper belt object 1993 SC, perhaps indicating different origins, thermal histories, or both for these two objects.

Original languageEnglish (US)
Pages (from-to)1430-1432
Number of pages3
JournalScience
Volume280
Issue number5368
DOIs
Publication statusPublished - May 29 1998

ASJC Scopus subject areas

  • General

Cite this

Brown, R. H., Cruikshank, D. P., Pendleton, Y., & Veeder, G. J. (1998). Identification of water ice on the Centaur 1997 CU26. Science, 280(5368), 1430-1432. https://doi.org/10.1126/science.280.5368.1430