Ultraviolet spectrometer experiment for the Voyager mission |
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| Authors: | A L Broadfoot B R Sandel D E Shemansky S K Atreya T M Donahue H W Moos J L Bertaux J E Blamont J M Ajello D F Strobel J C McConnell A Dalgarno R Goody M B McElroy Y L Yung |
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| Institution: | (1) Kitt Peak National Observatory, 85726 Tucson, Ariz., USA;(2) University of Michigan, 48109 Ann Arbor, Mich., USA;(3) Johns Hopkins University, 21218 Baltimore, Md, USA;(4) Service d'Aeronomie du CNRS, Paris, France;(5) Jet Propulsion Laboratory, 91103 Pasadena, Calif., USA;(6) Naval Research Laboratory, 20375 Washington, D.C., USA;(7) York University, M3J 1P3 Ontario, Canada;(8) Harvard University, 02138 Cambridge, Mass., USA |
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| Abstract: | The Voyager Ultraviolet Spectrometer (UVS) is an objective grating spectrometer covering the wavelength range of 500–1700 Å with 10 Å resolution. Its primary goal is the determination of the composition and structure of the atmospheres of Jupiter, Saturn, Uranus and several of their satellites. The capability for two very different observational modes have been combined in a single instrument. Observations in the airglow mode measure radiation from the atmosphere due to resonant scattering of the solar flux or energetic particle bombardment, and the occultation mode provides measurements of the atmospheric extinction of solar or stellar radiation as the spacecraft enters the shadow zone behind the target. In addition to the primary goal of the solar system atmospheric measurements, the UVS is expected to make valuable contributions to stellar astronomy at wavelengths below 1000 Å. |
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