The temperature dependence of the CO infrared band strength in CO:H2O ices

Details The temperature dependence of the CO infrared band strength in CO:H2O ices The temperature dependence of the CO infrared band strength in CO:H2O ices

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340l..33s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 340, May 1, 1989, p. L33-L36.

Astronomy and Astrophysics

Astrophysics

41

Carbon Monoxide, Infrared Spectra, Interstellar Matter, Molecular Clouds, Temperature Dependence, Absorption Spectra, Astronomical Spectroscopy, Ice Nuclei

Scientific paper

Experimental results on the temperature dependence of the C-triple-bond-O stretch band of CO in H20 ices are presented, and the astrophysical significance of the results is discussed. When CO is trapped in water-rich ice mixtures, the 2137/cm and 2152/cm absorptions are found to undergo irreversible changes in shape upon warmup. The present results suggest that, for interstellar grains, the amount of solid CO embedded in water-rich ice mantles may be underestimated by as much as 40 percent.

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