Table 4: Methanol rotational temperatures and column densities, assuming a 10'' source size.
Source CH3OH CH2DOH CH3OD CHD2OH
  $T_{\rm rot}$ $N_{\rm tot}$ $T_{\rm rot}$ $N_{\rm tot}$ $N_{\rm tot}$ $N_{\rm tot}$
  (K) ($\times$1014 cm-2) (K) ($\times$1014 cm-2) ($\times$1013 cm-2) ($\times$1014 cm-2)
IRAS 4A 38.0 $\pm$ 3.2 6.9 $\pm$ 1.4 27.1 $\pm$ 1.3 4.3 $\pm$ 0.4 3.1 $\pm$ 0.7c 1.1 $\pm$ 0.17c
IRAS 4B 84.9 $\pm$ 16.8 8.0 $\pm$ 2.7 15.6 $\pm$ 0.5 2.9 $\pm$ 0.2 1.1 $\pm$ 0.20c 0.90 $\pm$ 0.10c
IRAS 2 207 $\pm$ 48.1 10.1 $\pm$ 3.7 55.3 $\pm$ 4.9 5.2 $\pm$ 0.8 $\le$8.0 2.1 $\pm$ 0.4c
L1448N 27.5 $\pm$ 4.5 1.2 $\pm$ 0.47 27.5 $\pm$ 4.5a 2.1 $\pm$ 0.6b $\le$8.0 $\le$10
L1448mm 76.3 $\pm$ 19.1 1.6 $\pm$ 0.70 76.3 $\pm$ 19.1a 11.3 $\pm$ 4.7b 40 $\pm$ 16b $\le$6.3
L1157mm 112 $\pm$ 201 1.9 $\pm$ 5.2 112 $\pm$ 201a 10.3 $\pm$ 27.7b 22 $\pm$ 66b $\le$9.6
a Temperature fixed to the rotational temperature of CH3OH.
b Should be taken as an upper limit, as the rotational temperature is likely to be overestimated.
c Temperature fixed to the rotational temperature of CH2DOH.

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