Vis-NIR reflectance spectra of a mixture of Magnetite, NH4-Nontronite, Antigonite and Dolomite, pure, mixed with Water ice, during and after ice sublimationStefan Schroeder, Olivier Poch, Marco Ferrari & Simone DeAngelis
This mixture was prepared as a spectral analogue for Ceres surface material. We measured the reflectance spectra (from 0.5 to 4 µm) of the mixture pure (at room temperature) and mixed with water ice particles (at 173 K), as well as during and after sublimation of the water ice under high vacuum (at 173 K). The spectrum of the surface obtained after sublimation exhibits a blue spectral slope.
Vis-NIR bidirectional reflection spectra of several ammonium salts mixed with pyrrhotite grains in sublimate residues at 173 KOlivier Poch & Istiqomah Istiqomah
Dry mixtures (called "sublimate residues") of sub-micrometer size opaque pyrrhotite (Fe1-xS) grains with ammonium (NH4+) salts (chloride, sulfate, formate, carbamate, citrate) were prepared by sublimation of ice-dust mixtures. Reflectance spectra (from 0.4 to 4 µm) of these mixtures were measured at 173 K under high vacuum (pressure lower than 10^-5 mbar).
NIR reflectance spectra of mixtures of AMES tholins with liquid and solid CH4, C2H6 and CH3CN at several temperaturesDaniel Mege, Delphine Nna-Mvondo, Sandeep Singh & Vincent Chevrier
NIR reflectance spectra of AMES tholins (from 90% N2:10% CH4) pure and mixed with different liquids and solids (CH4, C2H6 and CH3CN+C2N6) at temperatures from ambient to 88 K. Spectra were recorded upon cooling while the liquid was progressively added. Freezing occured at some point.
An experimental facility has been set up to acquire infrared spectra of pure water ices with controlled grain sizes ranging from 80 to 700 µm and temperatures ranging from 80 to 140 K at 0.01 mbar. Forty-seven near IR spectra (1.0–5.0 µm), selected among the total acquired spectra, permit us to determine how spectral characteristics between 1.0 and 1.8 µm depend on both grain size and temperature.
NIR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Smectite STx-1 (2 µm grains) at 263K, PatmAntoine Pommerol & Bernard Schmitt
NIR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Smectite STx-1 (2µm grains) at 263K and ambient pressure
Vis-NIR reflectance spectra of the Udokan basalts altered in cold and arid environment (Siberia). The samples were collected along lava flow. The experiment contains spectra of the surface of the samples.
Chloride molality varying from 0.03 to 10 m; temperature varying from 25 to 450 °C
NIR and MIR reflectance spectra of AMES tholins (from 90% $N_2$:10% $CH_4$ gas) after synthesis, at ambient temperature