Table 8: Main-beam intensities, peak temperatures and width for the observed transitions towards L1527.
    L1527
Frequency $E_{\rm up}$ $\int{{T}_{\rm mb}{\rm d}v}$ $T_{\rm mb}$ $\Delta v$
GHz cm-1 K km s-1 K km s-1

HDCO 		        

134.285		 12.3 0.75 $\pm$ 0.08 1.1 0.7 $\pm$ 0.1
201.341 19.0 0.70 $\pm$ 0.08 0.98 0.7 $\pm$ 0.1
256.585 21.4 0.77 $\pm$ 0.10 0.18 0.9 $\pm$ 0.1

D2CO 		        

110.838		 9.3 0.133 $\pm$ 0.016 0.243 0.5 $\pm$ 0.1
166.103 14.8 0.219 $\pm$ 0.038 0.327 0.6 $\pm$ 0.1
231.410 19.4 0.367 $\pm$ 0.047 0.601 0.6 $\pm$ 0.1
276.060 31.4 $\le$0.23 - -

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