Fig. 6
Core mass plotted against the effective core radius. The magenta and black dashed lines indicate the empirical mass-radius thresholds for high-mass star formation proposed by Kauffmann & Pillai (2010) and Baldeschi et al. (2017), respectively. When scaled to the assumptions adopted in the present study, these thresholds are given by
and 
(see Sect. 4.2 for details).
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