Voyager observations of the azimuthal brightness variations in Saturn's rings |
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| Institution: | 1. Lawrence Livermore National Laboratory, Livermore, CA 94551, USA;2. Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA;1. Department of Earth, Environmental and Planetary Sciences, Rice University, 6100 Main Street, MS 126, Houston, TX 77005, USA;2. Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA;1. Steinmann-Institut, Universität Bonn, 53115 Bonn, Germany;2. School of Earth Sciences, The University of Queensland, Brisbane QLD 4072, Australia;3. Institut für Planetologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany;1. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, India;2. Space Application Centre, Indian Space Research and Organisation, India;1. Bernal Institute, University of Limerick, Ireland;2. CONFIRM Centre, University of Limerick, Ireland;3. Boeing Aerospace Spain S.L, Spain;1. Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA;2. NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA;3. Department of Earth Science and Engineering, Imperial College, London, UK |
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| Abstract: | This paper presents some Voyager observations of the azimuthal brightness variations in Saturn's ring A. Measurements in reflected light are in general agreement with Earth-based studies. The unique contribution of Voyager—images of the rings in light transmitted through them—shows the brightness variations also to be present, but they have a decidedly greater amplitude and differ in phase by ∼65° from those seen in reflexion. The photometric behavior on both sides can probably be qualitatively explained by the extensive presence of particle wakes in ring A. |
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