Surface features on interstellar ice
Abstract
Recent laboratory measurements of near-infrared features arising from dangling bonds at the surfaces of water ice are described. It is argued that the astronomical detection of these features will give a direct measurement of the surface: bulk ratio of interstellar ice, and will constrain several unknown astrophysical parameters, including the rate of H_2 formation in dark interstellar clouds, and the extent of large molecule freeze-out on dust by H bonding. These infrared surface features are predicted to have a detectable strength, and should be sought with ISO.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1996
- DOI:
- 10.1093/mnras/279.3.L53
- Bibcode:
- 1996MNRAS.279L..53M
- Keywords:
-
- MOLECULAR PROCESSES;
- DUST;
- EXTINCTION;
- ISM: MOLECULES