Proc. IAU volume 13, issue S332, P429-434 2017 DOI: 10.1017/s1743921317007888 View full text
K.-J. Chuang

Abstract: Complex organic molecules (COMs) have been observed in comets, hot cores and cold dense regions of the interstellar medium. It is generally accepted that these COMs form on icy dust grain through the recombination reaction of radicals triggered by either energetic UVphoton or non-energetic H-atom addition processing. In this work, we present for the first time laboratory studies that allow for quantitative comparison of hydrogenation and UV-induced reactions as well as their cumulative effect in astronomicall…

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