All Tables

Table 1: Parameters of the sources targeted in our deuterated formaldehyde and methanol observations. IRAS 16293-2422 is added for comparison. The offsets used for the OFF position of the position switching mode are indicated in the last column.
Table 2: Column densities for methanol isotopomers towards IRAS4A, derived by fixing the rotational temperature to the one derived for CH₂DOH, and ratios between isotopomers.
Table 3: H₂CO, HDCO, and D₂CO rotational temperatures and column densities, assuming a 10'' source.
Table 4: Methanol rotational temperatures and column densities, assuming a 10'' source size.
Table 5: Deuterium fractionation for formaldehyde and methanol, for an assumed source size of 10''. Error bars are associated with a 90% confidence interval (see appendix).
Table 6: Main-beam intensities, peak temperatures, and width for the observed transitions towards NGC1333-IRAS4A, IRAS4B, and IRAS2. The errors on the fluxes were computed as the quadratic sum of the statistical error and the calibration uncertainty (see text). Upper limits are 3 $\sigma$ (see text).
Table 7: Main-beam intensities, peak temperatures, and width for the detected transitions towards L1448N, L1448mm, and L1157mm. The errors on the fluxes were computed as the quadratic sum of the statistical error and the calibration uncertainty (see text). Upper limits are 3 $\sigma$ . Upper limits for lines not detected in any of these three sources can be found in Table 9.
Table 8: Main-beam intensities, peak temperatures and width for the observed transitions towards L1527.
Table 9: Main-beam temperature upper limits at 3 $\sigma$ level for the deuterated methanol transitions observed towards L1448N, L1448mm, and L1157mm.