\begin{table}%t4 \caption{\label{methanol}List of detected lines of CH$_3$OH.} \par %\centering \par \begin{tabular}{cc|cc|cc|cc|cc|cc} \hline \hline Transition & Freq. & \multicolumn{2}{c|}{L1157-B1} & \multicolumn{2}{c|}{IRAS~16293} & \multicolumn{2}{c|}{OMC2-IRAS~4} & \multicolumn{2}{c|}{AFGL~2591} & \multicolumn{2}{c}{NGC~6334I}\\ & & $T_{\rm mb}\Delta v$ & $\Delta v$ & $T_{\rm mb}\Delta v$ & $\Delta v$ & $T_{\rm mb}\Delta v$ & $\Delta v$ & $T_{\rm mb}\Delta v$ & $\Delta v$ & $T_{\rm mb}\Delta v$ & $\Delta v$ \\ & (GHz) & K km~s$^{-1}$ & km~s$^{-1}$ & K km~s$^{-1}$ & km~s$^{-1}$ & K km~s$^{-1}$ & km~s$^{-1}$ & K km~s$^{-1}$ & km~s$^{-1}$ & K km~s$^{-1}$ & km~s$^{-1}$\\ \hline $11_{20}{-}10_{10}$ & 558.345 & $\leq$0.13 & -- & 0.49(0.12) & 6.3 & 1.53(0.12) & 3.3 & $\leq$0.31 & -- & 6.57(1.72) & 5.3\\ $3_{-20}{-}2_{-10}$ & 568.566 & $\leq$0.10 & -- & 0.85(0.11) & 4.0 & 2.35(0.13) & 4.3 & $\leq$0.26 & -- & 9.72(0.47) & 5.7\\ $17_{0+0}{-}16_{1+0}$ & 568.784 & $\leq$0.09 & -- & $\leq$0.10 & -- & 0.74(0.14) & 3.3 & $\leq$0.25 & -- & 3.81(0.50) & 5.3\\ $15_{-10}{-}14_{00}$ & 572.899 & $\leq$0.08 & -- & $\leq$0.13) & -- & 1.20(0.09) & 3.6 & $\leq$0.23 & -- & 4.82(0.52) & 5.4\\ $12_{1+0}{-}11_{1+0}$ & 574.868 & $\leq$0.09 & -- & 0.41(0.11) & 4.7 & 1.30(0.10) & 4.1 & 0.83(0.22) & 9.1 & 5.96(0.86) & 5.5\\ $12_{0+2}{-}11_{0+2}$ & 577.996 & $\leq$0.07 & -- & 0.43(0.12) & 5.7 & 1.67(0.12) & 3.8 & $\leq$0.28 & -- & 5.65(1.15) & 5.8\\ $12_{00}{-}11_{00}$ & 578.006 & $\leq$0.09 & -- & 0.53(0.11) & 6.2 & 1.61(0.11) & 3.7 & $\leq$0.29 & -- & 5.48(1.25) & 5.6\\ $2_{2-0}{-}1_{1-0}$ & 579.085 & 0.46(0.08) & 6.2 & 0.76(0.13) & 4.5 & 1.84(0.11) & 4.3 & $\leq$0.25 & -- & 9.96(4.55) & 5.3\\ $12_{-10}{-}11_{-10}$ & 579.150 & 0.43(0.09) & 5.2 & 0.53(0.14) & 4.1 & 2.84(0.09) & 3.5 & $\leq$0.26 & -- & $\leq$6.43 & --\\ $12_{0+0}{-}11_{0+0}$ & 579.460 & $\leq$0.07 & -- & 0.57(0.14) & 5.0 & 3.01(0.09) & 3.7 & $\leq$0.26 & -- & 6.98(0.68) & 5.5\\ $12_{2-0}{-}11_{2-0}$ & 579.858 & $\leq$0.08 & -- & $\leq$0.12 & -- & 0.62(0.10) & 4.1 & $\leq$0.35 & -- & 8.14(6.18) & 8.2\\ $2_{2+0}{-}1_{1+0}$ & 579.921 & $\leq$0.10 & -- & 0.59(0.13) & 4.4 & 1.69(0.09) & 4.2 & $\leq$0.28 & -- & 13.00(3.60) & 8.0\\ $12_{6+0}{-}11_{6+0}$ & 579.933 & $\leq$0.09 & -- & 0.81(0.17) & 5.7 & 1.79(0.19) & 4.3 & $\leq$0.34 & -- & 10.58(3.88) & 6.5\\ $12_{10}{-}11_{10}$ & 580.369 & $\leq$0.09 & -- & 0.49(0.11) & 5.9 & 1.09(0.12) & 3.8 & $\leq$0.28 & -- & 6.26(3.06) & 5.8\\ $12_{2+0}{-}11_{2+0}$ & 580.502 & $\leq$0.08 & -- & $\leq$0.12 & -- & 0.59(0.13) & 4.1 & $\leq$0.26 & -- & 5.39(3.35) & 5.3\\ $12_{20}{-}11_{20}$ & 580.903 & $\leq$0.08 & -- & 0.68(0.12) & 6.4 & 1.47(0.10) & 3.6 & $\leq$0.27 & -- & 6.25(0.63) & 5.4\\ $12_{-20}{-}11_{-20}$ & 581.092 & $\leq$0.08 & -- & 0.49(0.13) & 6.4 & 0.84(0.13) & 4.3 & $\leq$0.20 & -- & 6.34(0.44) & 5.9\\ $6_{1+0}{-}5_{0+0}$ & 584.450 & 0.82(0.10) & 6.7 & 1.31(0.12) & 4.1 & 4.06(0.14) & 3.9 & $\leq$0.27 & -- & 13.38(0.54) & 5.9\\ $12_{1-0}{-}11_{1-0}$ & 584.822 & $\leq$0.14 & -- & 0.48(0.15) & 6.0 & 1.78(0.13) & 3.7 & $\leq$0.34 & -- & 8.56(0.94) & 9.2\\ $23_{-30}{-}22_{-40}$ & 587.622 & $\leq$0.12 & -- & 3.23(0.16) & 4.2 & 3.45(0.39) & 9.4 & 0.88(0.27) & 4.4 & 16.38(1.23) & 7.1\\ $7_{3+0}{-}6_{2+0}$ & 590.278 & $\leq$0.13 & -- & 0.76(0.12) & 5.8 & 2.29(0.15) & 3.7 & $\leq$0.31 & -- & 10.26(0.51) & 5.6\\ $7_{3-0}{-}6_{2-0}$ & 590.440 & $\leq$0.11 & -- & 0.77(0.15) & 4.4 & 2.19(0.15) & 3.7 & 1.04(0.26) & 8.0 & 9.92(0.62) & 5.4\\ $9_{00}{-}8_{-10}$ & 590.791 & $\leq$0.13 & -- & 0.70(0.23) & 5.6 & 1.99(0.15) & 3.7 & $\leq$0.28 & -- & 6.25(1.44) & 4.8\\ $9_{10}{-}8_{00}$ & 602.233 & $\leq$0.13 & -- & 0.47(0.20) & 4.5 & 1.52(0.19) & 3.7 & $\leq$0.35 & -- & 7.49(2.56) & 5.3\\ $12_{20}{-}11_{10}$ & 607.216 & $\leq$0.14 & -- & $\leq$0.38 & -- & 1.29(0.18) & 3.5 & $\leq$0.33 & -- & 5.77(0.86) & 5.2\\ $13_{1+0}{-}12_{1+0}$ & 622.659 & $\leq$0.09 & -- & 0.53(0.12) & 7.3 & 1.22(0.12) & 4.0 & $\leq$0.27 & -- & 9.57(1.10) & 8.2\\ $13_{00}{-}12_{00}$ & 625.749 & $\leq$0.10 & -- & 0.38(0.13) & 5.5 & 1.51(0.12) & 3.7 & $\leq$0.35 & -- & 6.06(0.78) & 5.9\\ $13_{2+1}{-}12_{2+1}$ & 626.609 & $\leq$0.13 & -- & 0.71(0.22) & 3.7 & 2.14(0.39) & 4.3 & $\leq$0.36 & -- & 11.46(2.90) & 6.5\\ $3_{2-0}{-}2_{1-0}$ & 626.626 & $\leq$0.10 & -- & 0.59(0.14) & 3.4 & 2.22(0.12) & 4.5 & $\leq$0.31 & -- & 9.80(2.84) & 5.6\\ $13_{01}{-}12_{01}$ & 626.640 & $\leq$0.11 & -- & 0.63(0.16) & 3.5 & 2.18(0.33) & 4.4 & $\leq$0.38 & -- & 8.78(2.31) & 5.1\\ $13_{-10}{-}12_{-10}$ & 627.170 & $\leq$0.09 & -- & 0.75(0.14) & 6.5 & 2.70(0.13) & 3.9 & $\leq$0.29 & -- & 5.20(1.38) & 4.6\\ $13_{1-2}{-}12_{1-2}$ & 627.187 & $\leq$0.11 & -- & 0.68(0.21) & 6.7 & 3.32(0.96) & 4.6 & $\leq$0.33 & -- & 5.72(1.95) & 4.9\\ $13_{0+0}{-}12_{0+0}$ & 627.558 & $\leq$0.11 & -- & 0.65(0.14) & 5.5 & 2.72(0.11) & 3.8 & $\leq$0.29 & -- & 6.90(1.00) & 5.4\\ $13_{a10}{-}12_{a10}$ & 627.572 & $\leq$0.11 & -- & 0.71(0.15) & 6.6 & 2.86(0.33) & 3.9 & $\leq$0.31 & -- & 6.99(1.18) & 5.5\\ $14_{-60}{-}15_{-50}$ & 628.042 & $\leq$0.09 & -- & $\leq$0.12 & -- & 0.61(0.13) & 4.7 & $\leq$0.27 & -- & 8.97(2.97) & 9.2\\ $13_{2-0}{-}12_{2-0}$ & 628.052 & $\leq$0.10 & -- & $\leq$0.17 & -- & 0.62(0.14) & 4.7 & $\leq$0.30 & -- & 9.22(2.95) & 9.4\\ $13_{3+0}{-}12_{3+0}$ & 628.470 & $\leq$0.09 & -- & $\leq$0.20 & -- & 0.68(0.24) & 4.8 & $\leq$0.30 & -- & $\leq$5.22 & --\\ $13_{4-0}{-}12_{4-0}$ & 628.512 & $\leq$0.10 & -- & $\leq$0.18 & -- & 1.30(0.27) & 10.2 & $\leq$0.30 & -- & $\leq$3.60 & --\\ $13_{3-0}{-}12_{3-0}$ & 628.525 & $\leq$0.09 & -- & $\leq$0.10 & -- & 1.31(0.11) & 10.0 & $\leq$0.31 & -- & 13.23(4.49) & 11.1\\ $13_{10}{-}12_{10}$ & 628.696 & $\leq$0.14 & -- & 0.43(0.18) & 6.9 & 1.00(0.12) & 3.9 & $\leq$0.31 & -- & 4.35(0.88) & 4.3\\ $13_{30}{-}12_{30}$ & 628.816 & $\leq$0.10 & -- & 0.49(0.12) & 7.6 & 0.42(0.11) & 6.0 & $\leq$0.34 & -- & 5.54(3.80) & 5.6\\ $13_{2+0}{-}12_{2+0}$ & 628.869 & $\leq$0.10 & -- & $\leq$0.12 & -- & 0.58(0.11) & 4.5 & $\leq$0.30 & -- & 5.76(3.61) & 5.3\\ $3_{2+0}{-}2_{1+0}$ & 629.140 & 0.51(0.11) & 6.3 & 0.86(0.15) & 4.2 & 2.06(0.14) & 4.0 & $\leq$0.34 & -- & 12.61(0.61) & 5.8\\ $13_{20}{-}12_{20}$ & 629.322 & $\leq$0.12 & -- & 0.48(0.15) & 6.0 & 1.42(0.11) & 3.9 & $\leq$0.33 & -- & 6.34(1.45) & 5.4\\ $13_{-20}{-}12_{-20}$ & 629.652 & $\leq$0.09 & -- & $\leq$0.14 & -- & 0.76(0.12) & 4.4 & $\leq$0.28 & -- & 6.22(0.60) & 5.4\\ $7_{1+0}{-}6_{1+0}$ & 629.921 & 0.51(0.12) & 5.8 & 1.29(0.11) & 4.3 & 4.22(0.10) & 3.9 & $\leq$0.26 & -- & 13.51(0.50) & 6.1\\ $13_{1-0}{-}12_{1-0}$ & 633.423 & $\leq$0.11 & -- & 0.46(0.16) & 5.7 & 1.69(0.14) & 3.7 & $\leq$0.38 & -- & 6.45(0.57) & 5.2\\ \hline \end{tabular} \tablefoot {Only lines detected in at least a source other than NGC~6334I are reported. Columns are as in Table~3. Note that the nomenclature for the transition is the one from the JPL~catalog.} \end{table}