Methane abundance in the atmosphere of Uranus |
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| Authors: | VG Teifel |
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| Institution: | Astrophysical Institute, Academy of Sciences KazSSR, Alma-Ata, 480068 USSR |
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| Abstract: | Modeling of the geometric albedo of Uranus in and near prominent methane absorption bands between 0.5 and 0.9 μm indicates that the visible atmosphere probably consists of a thin aerosol haze layer (τscat ? 0.3?0.5; ωH ? 0.95) above an optically thick, semi-infinite Rayleigh scattering atmosphere. A significant depletion of methane gas above the haze layer is indicated. The mixing ratio of methane in the lower atmosphere is consistent with a value of CH4/H2 ? 3 × 10?3, comparable to those derived for Jupiter and Saturn. |
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