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Published October 1979 | Published
Journal Article Open

The near-infrared reflectivity of the dark and light faces of Iapetus


Low resolution spectra have been obtained from 2.0-2.5 μm of the dark and light sides of Iapetus. The spectrum of the light side confirms the presence of ice as observed by Fink et al. The spectrum of the dark side is flat with wavelength. This is taken as evidence that the surface of the dark side is an asteroidlike material.

Additional Information

© 1979 American Astronomical Society. Received 5 June 1979; revised 17 July 1979. We thank our night assistants J. Frazier and H. Lanning as well as D. Matson, K. Matthews, J. Mould, D. Nadeau, and G. Veeder for discussion of and assistance with the observations. This work was supported by NASA grant NGL 05-002-207 and NSF grant AST 77-20516.

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Published - 1979AJ_____84_1644S.pdf


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