Saturn's inner moons: why are they so radar-bright? - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Communication Dans Un Congrès Année : 2019

Saturn's inner moons: why are they so radar-bright?

Résumé

Saturn's inner moons are the radar-brightest objects in the Solar System. The radar brightness of Mimas, Enceladus and Tethys at 2.2-cm wavelength exceeds that of the Galilean satellites. This points to extremely fresh and clean water ice in their subsurface but also to the presence of scattering structures that are especially efficient at returning waves in the backscattering direction. In this paper, we present the final results of the Cassini radar observations of Saturn's moons and explore subsurface models that could explain the extremely high recorded radar returns in the inner system. Using a 3D electromagnetic code, we first test models in which the subsurfaces of these moons contain a random distribution of centimetric inclusions (pores or ice spheres).
Fichier principal
Vignette du fichier
EPSC-DPS2019-454-2.pdf (243.53 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

insu-04421439 , version 1 (27-01-2024)

Identifiants

Citer

Alice Le Gall, Richard D West, Léa Bonnefoy, Valérie Ciarletti, Syphax Rahmouni, et al.. Saturn's inner moons: why are they so radar-bright?. EPSC-DPS Joint Meeting 2019, Sep 2019, Geneva, Switzerland. pp.EPSC-DPS2019-454-2. ⟨insu-04421439⟩
33 Consultations
7 Téléchargements

Partager

Gmail Facebook X LinkedIn More