335 Works

NIR Optical constants spectrum of H2O Ih crystal and H2O liquid from 20 to 293 K

Will Grundy & Bernard Schmitt

Vis-NIR reflectance spectra of a mixture of Magnetite, NH4-Nontronite, Antigonite and Dolomite, pure, mixed with Water ice, during and after ice sublimation

Stefan 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 K

Olivier 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 temperatures

Daniel 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.

Pt L3 edge XAS HERFD of metallic Pt powder at ambient conditions

Christèle Legens & Ana Teresa Fialho Batista

UV/vis optical constants of matrix-isolated carbonaceous nanoparticles condensed in Ar/H2 atmosphere

Martin Schnaiter, Harald Mutschke, Johann Dorschner & Thomas Henning

Infrared optical constants or amorphous Al-silicates

Birgit Begemann, Harald Mutschke, Johann Dorschner & Thomas Henning

Optical constants from UV to FIR for 6 Fe(II) and Fe(II)-Mg-oxides

Thomas Henning, Birgit Begemann, Harald Mutschke & Johann Dorschner

NIR reflectance spectra of water ice with varying grain size and temperature

Cécile Taffin
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.

Ag K edge XAS transmission of Ag-diethyldithiocarbamate

Ana Elena Pradas del Real & Géraldine Sarret

NIR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Smectite STx-1 (2 µm grains) at 263K, Patm

Antoine 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 Udokan (Siberia, Russia) basalt

Joanna Gurgurewicz
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.

Mn K edge XAS HERFD of synthetic Mn2+-nitronyl-nitroxide 2D magnet at 10K

Dominique Luneau, Anthony Lannes, Jean-Louis Hazemann & Isabelle Kieffer

Y K edge XAS fluorescence of yttrium(III) solution at hydrothermal conditions: 800 bar 30 to 450°C

Marion Louvel, Denis Testemale, Barbara Etschmann & Joel Brugger
Chloride molality varying from 0.03 to 10 m; temperature varying from 25 to 450 °C

Cu K edge XAS fluorescence of copper(I) solution at hydrothermal conditions: Cu+ 0.183m Cl 15.58m 600 bar 25 to 400°C

Denis Testemale, Joel Brugger, Barbara Etschmann & Weihua Liu

Fe K edge XAS transmission of synthetic fayalite Fe2SiO4 at ambient conditions

Denis Testemale & Carmen Sanchez-Valle

Au L3 edge XAS transmission of Au metallic foil reference at ambient conditions

Olivier Proux

SSHADE/BYPASS: Bern icY Planetary Analogues Solid Spectroscopy

Antoine Pommerol & Olivier Poch
This database provides access to the data measured in the Laboratory for Outflow Studies of Sublimating Materials (LOSSy) of the University of Bern. In the laboratory, we are preparing and analyzing analogs of planetary or cometary surfaces composed of pure or mixed ices or dust-ice mixtures to study their optical properties and dynamic evolution under simulated conditions. The collected data can be used to predict photometric properties or to interpret observational data of icy-dust planetary...

NIR and MIR reflectance spectra of AMES tholins (from 90% $N_2$:10% $CH_4$ gas)

Delphine Nna-Mvondo
NIR and MIR reflectance spectra of AMES tholins (from 90% $N_2$:10% $CH_4$ gas) after synthesis, at ambient temperature

Ce L3 edge XAS HERFD of Ce3+ acetate at 10K

Perrine Chaurand & Blanche Collin

Mid-infrared attenuated total reflectance experiment with Ca+ exchanged less 1 μm size fraction of montmorillonite (SCa-3) equilibrated with H2O vapor under variable relative humidity

Artur Kuligiewicz, Arkadiusz Derkowski, Vassilis Gionis & Georgios Chryssikos

Mn K edge XAS transmission of Mn metallic reference at ambient conditions

Olivier Proux

Ag K edge XAS transmission of PVP-coated Ag nano-particles

Ana Elena Pradas del Real & Géraldine Sarret

Ag K edge XAS transmission of synthetic acanthite Ag2S (nanos)

Ana Elena Pradas del Real & Géraldine Sarret

Cu K edge XAS HERFD (Kalpha1) of CuSO4 in aqueous solution at ambient conditions

Olivier Proux, Denis Testemale & Jean-Louis Hazemann

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