2007/03/08 by R. T. Garrod, V. Wakelam, E. Herbst · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Astrophysics and Star Formation Studies #Chemical and Physical Properties of Materials #astro-ph
paper · pdf · doi:10.1051/0004-6361:20066704
14 pages, 9 figures. Accepted by Astronomy & Astrophysics
arxiv created 2007/03/08 · openalex publication_date 2007/03/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Aims.The gas-phase abundance of methanol in dark quiescent cores in the interstellar medium cannot be explained by gas-phase chemistry. In fact, the only possible synthesis of this species appears to be production on the surfaces of dust grains followed by desorption into the gas. Yet, evaporation is inefficient for heavy molecules such as methanol at the typical temperature of 10 K. It is necessary then to consider non-thermal mechanisms for desorption. But, if such mechanisms are considered for the production of methanol, they must be considered for all surface species.