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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Nicholson, P. D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2019Cassini-VIMS observations of Saturn's main rings: II. A spectrophotometric study by means of Monte Carlo ray-tracing and Hapke's theorycitations
- 2017From the Icy Satellites to Small Moons and Rings: Spectral Indicators by Cassini-VIMS Unveil Compositional Trends in the Saturnian System
- 2015Studies of Saturn's Main Rings at Multiple Wavelengths
- 2013Surface Composition of the Non-Ice Component on Icy Satellites and Ring Particles in the Saturn System
- 2012Multi-wavelength studies of Saturn's rings to constrain ring particle properties and ring structure: the VIMS perspective
- 2011Composition and Grain Sizes of Dark Material in Saturn's Icy Satellites and Rings
- 2011The Composition of Saturn's Rings and Satellites from Cassini VIMS and UVIS
- 2008The Composition of Saturn's Rings
- 2007Saturn's Rings Observed with Cassini-VIMS
Places of action
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document
Composition and Grain Sizes of Dark Material in Saturn's Icy Satellites and Rings
Abstract
Cassini VIMS has acquired spectra of spatially resolved icy satellites and the rings of Saturn for over 6 years. The VIMS data provide a mixture space of ice and contaminants. In particular, the close Rev 49 fly-by of Iapetus provided spectra of the purest patches of dark material in the Saturn system as well as mixtures with ice. We have studied the spectral properties of the icy satellites and rings, modeling both the ice grain size distribution, the dark contaminants and their grain sizes. Modeling included nano-phase to micron-sized and larger particles and the effects of diffraction and Rayleigh absorption. We find that a simple and consistent explanation for the dark material includes nano-phase metallic iron and iron oxides. Carbon and tholins may also be present but are not spectrally dominant. <P />...