PPT Slide

Dust: Composition

• Crystalline olivine => 7- to 45-mm ISO spectra at 2.9 AU (Crovisier et al. 1997) => 8- to 13-mm spectra at 4.1 AU (Hayward & Hanner 1997)

• Water ice grains: reflection spectrum of amorphous water ice  => 1.4 - 2.5 mm spectra at 6.7 AU; Not at 4 AU (Davies et al. 1997) => ISO 45 mm 65 mm ice features at 2.9 AU (Crovisier et al. 1997)

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