Non-thermal desorption from interstellar dust grains via exothermic surface reactions
Non-thermal desorption from interstellar dust grains via exothermic surface reactions
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 …