Temperatures TF and masses MF derived from fitting Fν of both isolated and embedded starless cores vs. the true model values of TM and M for three β values (1.67, 2, 2.4). For various subsets Φn of fluxes, results from successful thinbody and modbody fits (Sect. 3.4) are displayed by the colored and gray lines, respectively. Error bars represent the 1 × σ uncertainties of the derived parameters returned by the fitting routine combined with the assumed ± 20% uncertainties of η, κ0, and D (Sect. 3.4). The black solid lines show the locations where TF and MF are equal to the true values. To preserve clarity of the plots, much less accurate modbody results are displayed only for correct β = 2 and without error bars.
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