Nuclear spin ratios of deuterated ammonia in prestellar cores - LAsMA observations of H-MM1 and Oph D

Open Access

Fig. 8

Evolution of the average o/p-NH₂D and o/p-NHD₂ ratios according to our chemistry model. The labelling is the same as in Fig. 5. The ranges derived from observations using the three-dimensional models for H-MM1 and Oph D with abundance profiles (b) and (c) (see Table 3) are indicated with shaded areas.

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