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Table 11

Summary of the best fit chemical model(s) for the molecular ratios as derived from the RADEX analysis in Sect. 3.2.2.

Region Set log (Ratio)radex Model AV (mag) n(H2) (cm-3) Tk (K) G° (Draine) ζ (10-17 s-1)
All 7 CO/HCO+ = 6 9 2 106 100 10 1
10 10 104 100 10 10
CO/HCN = 4 10 10 104 100 10 10
HCN/HCO+ = 2 17 2 2 × 106 100 1 1
16 10 5 × 106 100 1 1
CO/CS = 5 14 2 105 100 1 105
13 10 104 100 1 5 × 103
HCN/CS = 1 25(early times) – 104 – 1 1
E Knot 1 CO/HCO+ = 5.7 5 2, 10 105 100 1 10
20 2 106 200 1 1
CO/HCN = 4.7 15 2 2 × 106 100 10 1
14 10 105 100 1 105
HCN/HCO+ = 1 3 2 106 100 1 1
18 2 105 200 1 1
15 10 2 × 106 100 10 1
CO/CS = 4.7 24 10 105 200 10 1
HCN/CS = 0 14 2 105 100 1 105
13 10 104 100 1 5 × 103
27(late times) – 105 – 1 1
AGN 3, 6 CO/HCO+ = 5 13 2 104 100 1 5 × 103
CO/HCN = 4 10 10 104 100 10 10
HCN/HCO+ = 1 3 2 106 100 1 1
18 2 105 200 1 1
15 10 2 × 106 100 10 1
CO/CS = 4 18 2 105 200 1 1
24 2 105 200 10 1
HCN/CS = 0 14 2 105 100 1 105
13 10 104 100 1 5 × 103
27(late times) – 105 – 1 1
CND-S 2 CO/HCO+ = 5.7 5 2, 10 105 100 1 10
20 2 106 200 1 1
CO/HCN = 4.7 15 2 2 × 106 100 10 1
14 10 105 100 1 105
HCN/HCO+ = 1 3 2 106 100 1 1
18 2 105 200 1 1
15 10 2 × 106 100 10 1
CO/CS = 3.7 6 10 106 100 1 10
HCN/CS = 0 14 2 105 100 1 105
13 10 104 100 1 5 × 103
27(late times) – 105 – 1 1

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