Abstract
OBSERVATIONS from aircraft of Saturn's thermal emission do not resolve the flux component of the rings from that of the planet1,2. Ground-based observations in the windows at 11 and 20 µm, which resolve the rings and disk contributions, include only a small fraction of the thermal flux and are sensitive to greenhouse effects3–6. Using new filter techniques for ground-based observations7, we have measured the relative thermal emission from the rings and disk of Saturn in the band from 29 to 43 µm. This measurement provides an important constraint for separating the thermal properties of Saturn from those of its rings.
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NOLT, I., RADOSTITZ, J., DON NELLY, R. et al. Thermal emission of Saturn's rings and disk at 34 µm. Nature 248, 659–660 (1974). https://doi.org/10.1038/248659a0
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DOI: https://doi.org/10.1038/248659a0
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