If molecules form or perform exchange reactions under low-temperature conditions, the deuterated forms of some molecules will be relatively overabundant. Observations of DCN and HCN in the Orion cloud are translated into atomic abundances on this hypothesis, and we find that [D]/iH] is between 1:1 X 1O and 1:8 106. Subject headings: abundances - interstellar matter - molecules, interstellar - Orion Nebula
No takes yet. Share an insight, caveat, or question.
Solomon et al. (1973) studied this question.