Ultraviolet observations of Uranus and Neptune |
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| Affiliation: | 1. CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D''Alcontres 37, 98158 Messina, Italy;2. MATIS CNR-IMM, Istituto per la Microelettronica e Microsistemi, Via Santa Sofia 64, 95123 Catania, Italy;3. Dipartimento di Fisica e Astronomia, Università di Catania, Via Santa Sofia 64, 95123 Catania, Italy;4. Scuola Superiore di Catania, Via Valdisavoia 9, 95123 Catania, Italy;1. 14012 Lancaster Lane, Bowie, MD, 20715, USA;2. 5950 King Hill Drive, Farmington, NY, 14425, USA;3. 9 Chad Place, St. Clair, NSW 2759, Australia |
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| Abstract: | Far and extreme ultraviolet observations of Uranus and Neptune, principally by the ultraviolet spectrometer (UVS) on Voyager 2, are reviewed. Occultation observations have characterized the temperature, energy deposition, and major-constituent compositional profiles of these atmospheres above the 0.1–1 mbar level. Observations of airglow, light emitted by these atmospheres, are more complex to interpret but yield insight into atmospheric energy balance and chemistry. |
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