Thermal Desorption of Carbon Monoxide from Model Interstellar Ice Surfaces: Revealing Surface Heterogeneity

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Abstract

Temperature programmed desorption has been used to probe the distribution of binding energies of carbon monoxide (CO) to molecular solid thin films of astrophysical relevance. Measurements are reported for solid water (both compact amorphous solid water and crystalline water), ammonia and methanol surfaces. Binding energy distributions and optimised pre-exponential factors based on the inversion method are tabulated. These are compared to existing data on these systems and astrophysical conclusions drawn.
Original languageEnglish
Pages (from-to)1693-1699
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume498
Issue number2
Early online date3 Sep 2020
DOIs
Publication statusPublished - Oct 2020

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