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It has been predicted by theoretical models that ethane and ethanol are present in icy mantles covering dust particles in dense interstellar clouds. Laboratory spectra of ethanol embedded in astrophysically relevant ice matrices were compared to the Infrared Space Observatory and ground-based astronomical spectra of high mass protostars. From this comparison strict upper-limits of ethanol (compared...
We use Fourier transform infrared (FTIR) reflection spectroscopy (incidence angle of 5°) to characterize thin films of ethylene oxide (EO) and water/EO mixtures (between 11 and 170 K under a pressure of 10 −7 mbar). The photochemistry of EO in matrices, in the solid phase and ice was also investigated at 11 K using a microwave excited hydrogen flow lamp. Solid EO has two solid phases: an amorphous...
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