a) Ratio of derived to intrinsic (or “true”) core mass as a function of derived core mass for the same set of simulated core extractions as used in Appendix B.1 and Fig. B.1. The error bars are ± 1σ where σ is the dispersion of the mass ratio in each mass bin. The median mass ratio is ~ 0.8 above 0.4 M_⊙ (as indicated by the horizontal blue line) and ~ 0.7 close to the 90% completeness limit of 0.2 M_⊙ in observed core mass. The horizontal dashed line marks the mass ratio of 1 expected in the case of perfect core extractions and mass estimates. b) Difference between derived SED temperature and intrinsic mass-averaged dust temperature as a function of derived core mass for the same set of simulated core extractions. The error bars are ± 1σ where σ is the dispersion of the temperature difference in each mass bin. The median temperature difference is about + 0.8 K above 0.4 M_⊙ (as indicated by the horizontal blue line) and ~ 1 K close to a derived core mass of 0.2 M_⊙ (completeness limit). The horizontal dashed line marks the zero difference expected in the case of perfect core extractions and temperature estimates.