Far-infrared and submillimeter observations of the planets |
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| Authors: | RF Loewenstein DA Harper SH Moseley CM Telesco Harley A Thronson RH Hildebrand SE Whitcomb R Winston RF Stiening |
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| Institution: | Yerkes Observatory, The University of Chicago, Williams Bay, Wisconsin 53191 USA;Department of Physics and Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 USA;Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 USA |
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| Abstract: | New broadband observations in several passbands between 30 and 500 μm of Mercury, Venus, Mars, Jupiter, Saturn, and Uranus are presented. The best agreement between the data and various thermal models of Mars, Jupiter, and Uranus is obtained with a slightly cooler absolute temperature scale than that previously adopted by Armstrong et al. (1972). The effective temperature of Uranus is 58 ± 2°K, which is in agreement with its solar equilibrium temperature. The existence of an internal energy source of Saturn has been reconfirmed and must lie within the range of 0.9 to 3.2 times the absorbed solar flux. A depression exists in the spectra of Jupiter, Saturn, and Uranus between 80 and 300 μm, which may be a result of NH3 opacity. |
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