Fig. 2
Depletion of CO with increasing density, as predicted by our L-P collapse models for three values of the dynamical timescale, tdyn, and ac = 0.10 μm, compared with the observational results of Pagani et al. (2007, 2012) for L183. The L-P calculations corresponding to tdyn = tff, where tff is the free-fall time, are shown also for ac = 0.05 μm.
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