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Fig. 13


D/H fractions for the four continuum peaks in G35.20 compared to the Orion hot core (HC), Sgr B2, and IRAS 16 293–2422. The deuterium fractionation in G35.20 is higher than that of other high-mass star-forming regions in Orion and the Galactic center, but lower (for methanol) than in the low-mass star-forming region IRAS 16293. The methyl cyanide D/H value for IRAS 16293 is from an unpublished analysis reported in Taquet et al. (2014).

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