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Erratum
This article is an erratum for:
[https://doi.org/10.1051/0004-6361/200811391]

   

Table 1:

Corrected values for integrated line strength and derived column densities of observed molecular lines.
Molecule Transition $\int T_{\rm mb}{\rm d}v$a $N_{\rm mb}$(cm-2)b
      (Kkms-1) n = 105 cm-3 LTE
C2H 47/2 $\to$35/2 8.6 $\pm$1.6 4.4 $\times$ 1014 2.3 $\times$ 1014
C2H 49/2 $\to$37/2 11.3 $\pm$2.0 4.9 $\times$ 1014 2.4 $\times$ 1014
o-H2CO 515 $\to$414 9.3 $\pm$1.6 7.7 $\times$ 1014 3.8 $\times$ 1013
SO 89 $\to$78 5.2 $\pm$0.9 1.4 $\times$ 1015 7.2 $\times$ 1013
C18O 2 $\to$1 20.3 $\pm$3.4 2.3 $\times$ 1016 2.9 $\times$ 1016
HCN 3 $\to$2 74.0 $\pm$14 >6.5 $\times$ 1012c >4.9 $\times$ 1013c
13CO 3 $\to$2 186 $\pm$32 >2.1 $\times$ 1016c >2.5 $\times$ 1016c

Notes.  (a) Fitted value of integrated intensity at peak position along the northeast slice (see Fig. 1); uncertainties include fitting uncertainty and 15% absolute calibration uncertainty. (b) Beam-averaged column densities for n = 105 cm-3 and in LTE, both at T = 85 K. (c) Column density uncertain due to high optical depth; values listed here are lower limits.


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