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Table E.2

Results of the PDR models with solar metallicities.

Av nH X(HCO+)a X(HCN)a X(CO)a HCN/CO HCO+/CO HCO+/HCN
(mag) (cm-3) % %
G0 = 10
2.0 1 × 103 –11.6 –11.0 –6.5 0.84 0.45 0.54
2.0 5 × 103 –11.6 –10.4 –5.1 0.15 0.02 0.12
2.0 1 × 104 –11.5 –10.2 –4.6 0.11 0.01 0.10
2.0 5 × 104 –11.3 –9.6 –3.8 0.18 0.01 0.07
2.0 1 × 105 –11.1 –9.3 –3.7 0.29 0.02 0.06
2.0 5 × 105 –11.2 –8.9 –3.5 0.59 0.01 0.02
2.0 1 × 106 –11.2 –8.8 –3.4 0.68 0.01 0.01
4.0 1 × 103 –11.4 –10.5 –4.7 0.12 0.03 0.29
4.0 5 × 103 –11.1 –9.9 –3.8 0.19 0.03 0.16
4.0 1 × 104 –11.0 –9.7 –3.7 0.29 0.03 0.12
4.0 5 × 104 –11.1 –9.3 –3.5 0.64 0.03 0.05
4.0 1 × 105 –11.1 –9.1 –3.5 0.83 0.03 0.04
4.0 5 × 105 –11.3 –8.9 –3.4 1.22 0.02 0.01
4.0 1 × 106 –11.3 –8.8 –3.4 1.33 0.01 0.01
6.0 1 × 103 –10.8 –10.1 –4.4 0.30 0.15 0.51
6.0 5 × 103 –10.5 –9.7 –3.7 0.48 0.16 0.34
6.0 1 × 104 –10.5 –9.5 –3.6 0.65 0.15 0.23
6.0 5 × 104 –10.7 –9.2 –3.5 1.03 0.10 0.10
6.0 1 × 105 –10.7 –9.1 –3.4 1.19 0.09 0.08
6.0 5 × 105 –11.0 –9.0 –3.4 1.46 0.04 0.03
6.0 1 × 106 –11.1 –9.0 –3.4 1.52 0.03 0.02
10.0 1 × 103 –9.4 –9.2 –3.7 2.81 3.92 1.40
10.0 5 × 103 –9.5 –9.3 –3.5 1.74 2.12 1.22
10.0 1 × 104 –9.7 –9.3 –3.5 1.56 1.44 0.92
10.0 5 × 104 –10.1 –9.2 –3.4 1.79 0.64 0.36
10.0 1 × 105 –10.2 –9.1 –3.4 1.99 0.48 0.24
10.0 5 × 105 –10.5 –9.0 –3.4 2.17 0.23 0.10
10.0 1 × 106 –10.7 –9.0 –3.4 2.19 0.16 0.07
16.0 1 × 103 –8.6 –8.4 –3.5 10.58 11.99 1.13
16.0 5 × 103 –9.1 –8.6 –3.4 6.79 5.78 0.85
16.0 1 × 104 –9.3 –8.5 –3.4 6.63 4.18 0.63
16.0 5 × 104 –9.7 –8.7 –3.4 5.79 2.05 0.35
16.0 1 × 105 –9.9 –8.8 –3.4 5.01 1.55 0.31
16.0 5 × 105 –10.2 –9.0 –3.3 3.97 0.72 0.18
16.0 1 × 106 –10.4 –8.7 –3.3 4.03 0.49 0.12
26.0 1 × 103 –8.4 –8.2 –3.4 12.46 14.49 1.16
26.0 5 × 103 –8.9 –8.3 –3.4 9.03 8.66 0.96
26.0 1 × 104 –9.2 –8.3 –3.4 9.03 7.03 0.78
26.0 5 × 104 –9.6 –8.5 –3.4 8.94 4.13 0.46
26.0 1 × 105 –9.7 –8.6 –3.4 8.26 3.21 0.39
26.0 5 × 105 –10.1 –8.9 –3.3 6.74 1.53 0.23
26.0 1 × 106 –10.2 –8.7 –3.3 6.86 1.05 0.15
40.0 1 × 103 –8.3 –8.1 –3.4 13.15 16.22 1.23
40.0 5 × 103 –8.9 –8.2 –3.4 10.14 10.78 1.06
40.0 1 × 104 –9.1 –8.2 –3.4 10.38 9.44 0.91
40.0 5 × 104 –9.5 –8.4 –3.3 11.17 6.46 0.58
40.0 1 × 105 –9.7 –8.6 –3.3 10.92 5.20 0.48
40.0 5 × 105 –10.0 –8.9 –3.3 9.75 2.58 0.27
40.0 1 × 106 –10.2 –8.7 –3.3 10.02 1.78 0.18
50.0 1 × 103 –8.3 –8.1 –3.4 13.41 17.13 1.28
50.0 5 × 103 –8.8 –8.2 –3.4 10.62 11.84 1.11
50.0 1 × 104 –9.0 –8.2 –3.4 11.01 10.68 0.97
50.0 5 × 104 –9.5 –8.4 –3.3 12.26 7.85 0.64
50.0 1 × 105 –9.6 –8.6 –3.3 12.26 6.44 0.53
50.0 5 × 105 –10.0 –8.8 –3.3 11.49 3.28 0.29
50.0 1 × 106 –10.1 –8.7 –3.3 11.88 2.28 0.19
G0 = 50
2.0 1 × 103 –11.4 –11.9 –8.0 2.55 17.66 6.93
2.0 5 × 103 –11.7 –11.0 –6.6 1.14 0.47 0.41
2.0 1 × 104 –11.7 –10.7 –6.0 0.68 0.15 0.23
2.0 5 × 104 –11.5 –10.1 –4.7 0.18 0.03 0.14
2.0 1 × 105 –11.4 –9.9 –4.3 0.12 0.01 0.12
2.0 5 × 105 –10.8 –9.2 –3.7 0.23 0.02 0.07
2.0 1 × 106 –9.4 –7.1 –3.6 0.85 0.02 0.02
4.0 1 × 103 –11.5 –11.0 –5.7 0.14 0.08 0.58
4.0 5 × 103 –11.5 –10.3 –4.3 0.08 0.01 0.14
4.0 1 × 104 –11.4 –10.1 –4.0 0.12 0.01 0.11
4.0 5 × 104 –11.2 –9.5 –3.7 0.32 0.02 0.06
4.0 1 × 105 –11.2 –9.4 –3.6 0.43 0.02 0.04
4.0 5 × 105 –11.0 –9.0 –3.5 0.73 0.02 0.02
4.0 1 × 106 –10.2 –7.5 –3.5 1.16 0.01 0.01
6.0 1 × 103 –11.2 –10.5 –4.9 0.17 0.07 0.45
6.0 5 × 103 –10.9 –10.0 –3.8 0.23 0.06 0.27
6.0 1 × 104 –10.9 –9.8 –3.7 0.33 0.06 0.18
6.0 5 × 104 –11.0 –9.4 –3.5 0.62 0.05 0.08
6.0 1 × 105 –11.0 –9.3 –3.5 0.76 0.04 0.06
6.0 5 × 105 –11.0 –9.0 –3.4 1.02 0.03 0.03
6.0 1 × 106 –10.2 –7.9 –3.4 1.25 0.02 0.02
10.0 1 × 103 –10.1 –9.7 –4.0 1.11 0.85 0.77
10.0 5 × 103 –9.9 –9.5 –3.6 1.02 0.95 0.93
10.0 1 × 104 –9.9 –9.5 –3.5 0.97 0.73 0.75
10.0 5 × 104 –10.3 –9.3 –3.4 1.05 0.36 0.34
10.0 1 × 105 –10.4 –9.3 –3.4 1.12 0.27 0.24
10.0 5 × 105 –10.7 –9.2 –3.4 1.27 0.12 0.10
10.0 1 × 106 –10.5 –8.0 –3.4 1.55 0.08 0.05
16.0 1 × 103 –8.8 –8.6 –3.6 9.36 10.90 1.16
16.0 5 × 103 –9.2 –8.8 –3.5 4.95 4.54 0.92
16.0 1 × 104 –9.4 –8.7 –3.4 4.67 3.21 0.69
16.0 5 × 104 –9.8 –8.9 –3.4 3.76 1.58 0.42
16.0 1 × 105 –9.9 –9.0 –3.4 3.20 1.19 0.37
16.0 5 × 105 –10.2 –9.0 –3.4 2.60 0.53 0.20
16.0 1 × 106 –10.2 –8.0 –3.4 2.98 0.34 0.11
26.0 1 × 103 –8.5 –8.3 –3.5 12.16 14.10 1.16
26.0 5 × 103 –9.0 –8.4 –3.4 7.76 7.55 0.97
26.0 1 × 104 –9.2 –8.4 –3.4 7.55 6.07 0.80
26.0 5 × 104 –9.6 –8.6 –3.4 6.94 3.61 0.52
26.0 1 × 105 –9.7 –8.7 –3.4 6.15 2.81 0.46
26.0 5 × 105 –10.1 –8.9 –3.4 4.94 1.26 0.26
26.0 1 × 106 –10.2 –8.3 –3.3 5.29 0.81 0.15
40.0 1 × 103 –8.3 –8.2 –3.4 12.97 15.95 1.23
40.0 5 × 103 –8.9 –8.3 –3.4 8.88 9.64 1.08
40.0 1 × 104 –9.1 –8.3 –3.4 8.88 8.42 0.95
40.0 5 × 104 –9.5 –8.5 –3.4 9.11 5.91 0.65
40.0 1 × 105 –9.6 –8.7 –3.4 8.64 4.76 0.55
40.0 5 × 105 –10.0 –8.9 –3.3 7.58 2.20 0.29
40.0 1 × 106 –10.1 –8.3 –3.3 8.18 1.43 0.17
50.0 1 × 103 –8.3 –8.1 –3.4 13.25 16.90 1.28
50.0 5 × 103 –8.8 –8.3 –3.4 9.35 10.66 1.14
50.0 1 × 104 –9.0 –8.3 –3.4 9.47 9.61 1.01
50.0 5 × 104 –9.5 –8.5 –3.4 10.14 7.29 0.72
50.0 1 × 105 –9.6 –8.6 –3.3 9.92 5.99 0.60
50.0 5 × 105 –10.0 –8.9 –3.3 9.16 2.84 0.31
50.0 1 × 106 –10.1 –8.5 –3.3 9.77 1.85 0.19
G0 = 100
2.0 1 × 103 –11.5 –12.6 –8.6 2.27 69.47 30.54
2.0 5 × 103 –11.7 –11.5 –7.4 1.97 2.80 1.42
2.0 1 × 104 –11.8 –11.1 –6.8 1.46 0.85 0.59
2.0 5 × 104 –11.7 –10.5 –5.5 0.47 0.11 0.23
2.0 1 × 105 –11.6 –10.3 –5.0 0.23 0.04 0.19
2.0 5 × 105 –10.5 –9.5 –4.0 0.12 0.05 0.38
2.0 1 × 106 –10.7 –9.2 –3.8 0.15 0.01 0.07
4.0 1 × 103 –11.6 –11.3 –6.3 0.24 0.27 1.13
4.0 5 × 103 –11.7 –10.6 –4.7 0.07 0.01 0.18
4.0 1 × 104 –11.6 –10.3 –4.3 0.08 0.01 0.12
4.0 5 × 104 –11.4 –9.7 –3.8 0.21 0.01 0.07
4.0 1 × 105 –11.3 –9.5 –3.7 0.30 0.01 0.05
4.0 5 × 105 –10.7 –9.1 –3.6 0.53 0.03 0.06
4.0 1 × 106 –11.0 –9.0 –3.5 0.60 0.01 0.02
6.0 1 × 103 –11.3 –10.7 –5.1 0.13 0.06 0.47
6.0 5 × 103 –11.1 –10.1 –3.9 0.16 0.04 0.26
6.0 1 × 104 –11.0 –9.9 –3.8 0.23 0.04 0.18
6.0 5 × 104 –11.1 –9.5 –3.6 0.45 0.04 0.08
6.0 1 × 105 –11.1 –9.4 –3.5 0.56 0.03 0.06
6.0 5 × 105 –10.8 –9.1 –3.5 0.80 0.04 0.05
6.0 1 × 106 –11.1 –9.0 –3.4 0.83 0.02 0.02
10.0 1 × 103 –10.3 –9.8 –4.2 0.90 0.61 0.68
10.0 5 × 103 –10.0 –9.6 –3.6 0.83 0.64 0.76
10.0 1 × 104 –10.1 –9.5 –3.6 0.82 0.52 0.64
10.0 5 × 104 –10.3 –9.4 –3.5 0.88 0.28 0.32
10.0 1 × 105 –10.5 –9.4 –3.4 0.93 0.21 0.23
10.0 5 × 105 –10.7 –9.2 –3.4 1.01 0.11 0.11
10.0 1 × 106 –10.8 –9.2 –3.4 0.99 0.06 0.06
16.0 1 × 103 –8.8 –8.7 –3.7 8.80 10.47 1.19
16.0 5 × 103 –9.2 –8.9 –3.5 4.15 4.05 0.98
16.0 1 × 104 –9.4 –8.8 –3.5 3.85 2.85 0.74
16.0 5 × 104 –9.8 –9.0 –3.4 3.03 1.40 0.46
16.0 1 × 105 –10.0 –9.0 –3.4 2.59 1.06 0.41
16.0 5 × 105 –10.3 –9.1 –3.4 2.15 0.47 0.22
16.0 1 × 106 –10.4 –9.1 –3.4 2.13 0.29 0.14
26.0 1 × 103 –8.5 –8.3 –3.5 12.27 14.21 1.16
26.0 5 × 103 –9.0 –8.4 –3.4 7.31 7.17 0.98
26.0 1 × 104 –9.2 –8.4 –3.4 7.04 5.74 0.82
26.0 5 × 104 –9.6 –8.6 –3.4 6.23 3.45 0.55
26.0 1 × 105 –9.7 –8.8 –3.4 5.44 2.68 0.49
26.0 5 × 105 –10.0 –9.0 –3.4 4.41 1.18 0.27
26.0 1 × 106 –10.2 –8.9 –3.4 4.47 0.73 0.16
40.0 1 × 103 –8.3 –8.2 –3.4 13.13 16.13 1.23
40.0 5 × 103 –8.9 –8.3 –3.4 8.45 9.27 1.10
40.0 1 × 104 –9.1 –8.3 –3.4 8.37 8.09 0.97
40.0 5 × 104 –9.5 –8.5 –3.4 8.38 5.76 0.69
40.0 1 × 105 –9.6 –8.7 –3.4 7.86 4.64 0.59
40.0 5 × 105 –10.0 –8.9 –3.3 6.96 2.10 0.30
40.0 1 × 106 –10.1 –8.9 –3.3 7.22 1.32 0.18
50.0 1 × 103 –8.3 –8.2 –3.4 13.42 17.11 1.27
50.0 5 × 103 –8.8 –8.3 –3.4 8.91 10.28 1.15
50.0 1 × 104 –9.0 –8.3 –3.4 8.94 9.28 1.04
50.0 5 × 104 –9.4 –8.5 –3.4 9.40 7.14 0.76
50.0 1 × 105 –9.6 –8.7 –3.4 9.10 5.88 0.65
50.0 5 × 105 –9.9 –8.9 –3.3 8.51 2.71 0.32
50.0 1 × 106 –10.1 –8.8 –3.3 8.92 1.72 0.19

Notes. 

(a)

Logarithmic relative abundance X(mol) = log  (N(mol)/N(H2)).

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