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Astron. Astrophys. 339, L17-L20 (1998)

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2. Experimental

Interstellar ices are simulated using low temperature and vacuum techniques in combination with infrared spectroscopy. Ices are condensed as pure gases or gas mixtures onto the surface of a CsI window in a high vacuum chamber and cooled by a closed-cycle He refrigerator to 10 K. Infrared transmission spectra were obtained with a BioRad FTS 40A (Leiden) and a Brucker FTS IFS 66v (Paris) spectrometer at a resolution of 1 cm-1.

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© European Southern Observatory (ESO) 1998

Online publication: September 30, 1998
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