The chemistry of deuterium in hot molecular cores

S.D. Rodgers, TJ Millar

Research output: Contribution to journalArticlepeer-review

86 Citations (Scopus)


This paper presents the results of a model of the chemistry of deuterium-bearing molecules in hot molecular cores. It is found that because hydrogen- and deuterium-bearing molecules are destroyed by the same reactions at about the same rates, the initial fractionation present in ice mantles persists for over 10(4) yr. This is the case for a wide range of physical conditions, so it is safe to infer the fractionation on grain surfaces from observations of deuterated molecules in hot cores. The implications of the observed abundances of deuterium-bearing species in Orion are then discussed.
Original languageEnglish
Pages (from-to)1046-1054
Number of pages9
JournalMonthly Notices of the Royal Astronomical Society
Publication statusPublished - 1996


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