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The Atmospheres of Saturn and Titan in the Near-Infrared First Results of Cassini/vims
Sotin, C.; Brown, R. H.; Baines, K. H. +21 more
The wide spectral coverage and extensive spatial, temporal, and phase-angle mapping capabilities of the Visual Infrared Mapping Spectrometer (VIMS) onboard the Cassini-Huygens Orbiter are producing fundamental new insights into the nature of the atmospheres of Saturn and Titan. For both bodies, VIMS maps over time and solar phase angles provide in…
Cassini CIRS Observations of a Roll-Off in Saturn Ring Spectra at Submillimeter Wavelengths
Edgington, S. G.; Spilker, L. J.; Pilorz, S. H. +4 more
The Cassini Composite Infrared Spectrometer (CIRS) spatially resolved Saturn's main rings in the far-infrared, measuring the spectrum from 20 to 400 wavenumbers (cm‑1) (tens of microns to submillimeter wavelengths). We find a spectral roll-off below 50 cm‑1 (200 µm) for each of the A, B and C rings. From these data we d…
Dust Activity in Comet 67P/Churyumov–Gerasimenko from February 20 to April 20, 2003
Lara, L. M.; Gutiérrez, P. J.; Licandro, J. +1 more
Broadband imaging of Comet 67P/Churyumov–Gerasimenko has provided more data on the characterisation of the target of the ESA Rosetta Mission. The comet monitoring between rh=2.37 and rh=2.78 AU postperihelion shows a prominent dust coma which extends up to ≈ 25,000 km from the nucleus, and a long dust structure in approximate…
Titan's Ground Reflectance Retrieval from Cassini-Vims Data Taken during the July 2ND, 2004 Fly-By at 2 AM UT
D'Aversa, E.; Orosei, R.; Coradini, A. +5 more
An attempt to evaluate the preliminary values of the Titan's surface albedo at 2 µm from the first Cassini-VIMS observations of the moon is presented. The methodology is based on the application of radiative transfer calculations and a microphysical model of the Titan atmosphere based on fractal aerosol. As a first guess, the surface has bee…