Absorption spectra and microscope imaging of ice grains

Infrared absorption spectra and images of ice grains formed in a cryogenic hydrogen plasma at varying temperatures and pressures. Info on .csv files: These files each contain a single column of data. Labels of the format "Absorption_[PRESSURE]_[TEMPERATURE]_[TIME SINCE FORMATION].csv" each contain a single absorption spectrum. The file titled "Absorption_wavenumber.csv" contains the x-axis scale against which absorption spectra should be plotted. Info on .JPG files: Files are of the format "T[TEMPERATURE]_p[PRESSURE].JPG". These images show ice grains formed at corresponding temperature and pressure in a long-distance microscope. Grains appear dark against a light background of unfocused light; further explanation is given in the main manuscript.