SIMBAD references

2004MNRAS.353...59F - Mon. Not. R. Astron. Soc., 353, 59-68 (2004/September-1)

Using laboratory studies of CO-H2O ices to understand the non-detection of a 2152/cm (4.647µm) band in the spectra of interstellar ices.

FRASER H.J., COLLINGS M.P., DEVER J.W. and McCOUSTRA M.R.S.

Abstract (from CDS):

We present results from laboratory experiments on layered CO-H2O-ice systems, carried out from sub-monolayer to multilayer CO coverages, and review recent experimental data, as published by the authors. Under certain specific laboratory conditions the 2152/cm feature, associated with CO molecules adsorbed at dangling-OH bonds at the ice surface, is `missing'. A detailed analysis is used to understand why the same feature is not detected in spectra of interstellar ices. We conclude that the dangling-OH sites do exist in interstellar ices but that the sites are blocked by another species. The astronomical implications of this deduction are discussed.

Abstract Copyright: 2004 RAS

Journal keyword(s): astrochemistry - line: identification - molecular data - methods: laboratory - ISM: lines and bands - infrared: ISM

Simbad objects: 30

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