Prestellar grain-surface origins of deuterated methanol in comet 67P/Churyumov–Gerasimenko

  title={Prestellar grain-surface origins of deuterated methanol in comet 67P/Churyumov–Gerasimenko},
  author={Maria Nikolayevna Drozdovskaya and Isaac R H G Schroeder I and Martin Rubin and Kathrin Altwegg and Ewine F van Dishoeck and B. M. Kulterer and Johan De Keyser and Stephen Anthony Fuselier and Michael R. Combi},
  journal={arXiv: Earth and Planetary Astrophysics},
Deuterated methanol is one of the most robust windows astrochemists have on the individual chemical reactions forming deuterium-bearing molecules and the physicochemical history of the regions where they reside. The first-time detection of mono- and di-deuterated methanol in a cometary coma is presented for comet 67P/Churyumov-Gerasimenko using Rosetta-ROSINA data. D-methanol (CH3OD and CH2DOH combined) and D2-methanol (CH2DOD and CHD2OH combined) have an abundance of 5.5+/-0.46 and 0.00069+/-0… Expand
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