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Table B.1:

Modelled integrated intensities and resulting abundances.

  Observed     Best fit   H2 C18O C18O
Position I(1-0) I(2-1) I(3-2) I(1-0) I(2-1) I(3-2) column column fractional
    (K km s-1)     (K km s-1)   density density abundance
              (1023 cm-2) (1015 cm-2) ( $\times10^{-8}$)
NA 9.15 10.65 6.94 9.23 10.42 7.28 1.60 15.4 9.6
NB 7.47 8.87 4.76 7.44 8.15 5.20 1.39 11.9 8.6
NC 8.14 10.35 4.90 8.13 9.29 5.57 1.00 11.9 12.0
ND 7.90 10.09 4.82 7.99 8.88 6.20 4.01 13.5 3.4
SA1 4.69 10.57 8.46 4.75 9.84 9.01 1.84 6.4 5.8
SA2 2.42 1.98 0.50 2.50 2.02 0.64   4.2  
SB1 4.63 6.66 4.20 4.74 6.72 4.37 2.46 6.0 4.2
SB2 3.32 5.99 4.31 3.35 5.73 4.50   4.4  
SC1 4.61 7.37 3.87 4.72 6.82 4.37 3.87 5.8 1.9
SC2 1.17 2.58 1.45 1.21 2.23 1.71   1.4  
SD1 4.81 7.44 7.31 5.01 8.53 7.34 4.82 7.3 2.7
SD2 4.41 8.66 4.66 4.45 7.42 5.74   5.8  

Positions of the NW sub-cluster are identified as starting with N, while the south positions start with S. For the positions in the SE, the labels 1 and 2 identify the lower (LVC) and higher velocity (HVC) components respectively. Where there are two velocity component lines, the C18O fractional abundance was calculated using the total column density of C18O, summing both components


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