The Open UniversitySkip to content
 

Carbon monoxide entrapment in interstellar ice analogs

Collings, M. P.; Dever, J. W.; Fraser, H. J.; McCoustra, M. R. S. and Williams, D. A. (2003). Carbon monoxide entrapment in interstellar ice analogs. Astrophysical Journal, 583(2) pp. 1058–1062.

DOI (Digital Object Identifier) Link: https://doi.org/10.1086/345389
Google Scholar: Look up in Google Scholar

Abstract

The adsorption and desorption of CO on and from amorphous H2O ice at astrophysically relevant temperatures has been studied using temperature programmed desorption (TPD) and reflection-absorption infrared spectroscopy (RAIRS). Solid CO is able to diffuse into the porous structure of H2O at temperatures as low as 15 K. When heated, a phase transition between two forms of amorphous H2O ice occurs over the 30–70 K temperature range, causing the partial collapse of pores and the entrapment of CO. Trapped CO is released during crystallization and desorption of the H2O film. This behavior may have a significant impact on both gas-phase and solid-phase chemistry in a variety of interstellar environments.

Item Type: Journal Item
Copyright Holders: 2003 The American Astronomical Society.
ISSN: 1538-4357
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetUK Particle Physics and Astronomy Research Council (PPARC)
Keywords: astrochemistry; infrared - ISM; ISM - lines and bands; ISM - molecules; line - profiles; methods - laboratory
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 37221
Depositing User: Stephen Serjeant
Date Deposited: 20 Jun 2013 09:38
Last Modified: 02 May 2018 13:51
URI: http://oro.open.ac.uk/id/eprint/37221
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU