Mid- and Far-Infrared Spectroscopy of Ices: Optical Constants and Integrated Absorbances
Abstract
Laboratory spectra through the mid-infrared (4000 to 500/cm (2.5-20 microns) have been used to calculate the optical constants (n and k) and integrated absorption coefficients (A) for a variety of pure and mixed molecular ices of relevance to astrophysics. The ices studied were H2O, CH3OH, CO2, OCS, CH4, CO2 + CH4, CO2 + OCS, CO + CH4, CO + OCS, O2 + CH4, O2 + OCS, N2 + CH4, N2 + OCS, H2O + CH4, H2O + OCS, and H2O + CH3OH + CO + NH3. In addition, the measurements have been extended through the far-infrared (500 to 50/cm (20-200 microns) for the H2O, CH3OH, and H2O + CH3OH + CO + NH3 ices.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- June 1993
- DOI:
- 10.1086/191796
- Bibcode:
- 1993ApJS...86..713H
- Keywords:
-
- Absorptivity;
- Ice;
- Infrared Spectroscopy;
- Molecular Absorption;
- Far Infrared Radiation;
- Infrared Spectra;
- Organic Compounds;
- Astronomy;
- LINE: IDENTIFICATION;
- MOLECULAR DATA