Fig. 6
χ2 as a function of N(CH3OH − E) and Tkin for the PDR (red) and dense-core (blue) positions. The H2 density was kept constant to n(H2) = 6 × 104 cm-3 (PDR) and n(H2) = 1 × 105 cm-3 (dense core). The contours indicate the 1, 2, and 3σ confidence levels for the models. The reduced χ2, defined as 
, is shown for the best-fit model at each position.
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