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Table 2

Average gas physical conditions – hydrogen nuclei density (n), FUV radiation field strength (G0), temperture (T) and pressure (P) – derived from the comparison of our observations and the Kaufman et al. (1999, 2006) PDR model, when adopting various adjustments to the observed quantities (see Sect. 4.1) and considering each galaxy as a single PDR component.

[Cii], CO observed and 2CO and 2CO



Target log n/ cm3 log G0 T/K P/106 log n/ cm3 log G0 T/K P/106 log n/ cm3 log G0 T/K P/106

G09.DR1.12 4.6 2.9 124 4.9 5.3 2.8 255 50.9 5.6 2.8 568 226.1
G09.DR1.20 5.0 3.0 186 18.6 5.6 2.9 568 226.1 5.8 2.9 1190 750.8
G09.DR1.24 4.2 2.5 172 2.7 4.8 2.1 73 4.6 5.0 2.2 78 7.8
G09.DR1.32 4.0 2.9 209 2.1 5.0 2.8 140 14.0 5.3 2.9 255 50.9
G09.DR1.37 4.1 2.6 172 2.2 4.7 2.3 88 4.4 5.0 2.4 91 9.1
G09.DR1.43 4.0 2.6 172 1.7 4.7 2.3 88 4.4 5.0 2.3 91 9.1
G09.DR1.47 4.8 2.9 113 7.1 5.4 2.7 187 47.0 5.7 2.7 379 189.9
G09.DR1.49 2.5 2.4 220 0.1 4.4 2.8 160 4.0 4.8 2.8 113 7.1
G09.DR1.53 4.4 2.8 160 4.0 5.0 2.5 110 11.0 5.3 2.6 187 37.3
G09.DR1.56 3.5 2.5 221 0.7 4.5 2.6 103 3.3 4.8 2.6 92 5.8
G09.DR1.60 4.4 2.6 132 3.3 4.9 2.2 73 5.8 5.2 2.2 78 12.4
G09.DR1.61 3.6 2.7 221 0.9 4.7 2.8 124 6.2 5.0 2.8 140 14.0
G09.DR1.62 4.4 3.0 197 4.9 5.2 2.9 140 22.2 5.5 2.9 568 179.6
G09.DR1.72 4.1 2.6 172 2.2 4.8 2.4 80 5.0 5.1 2.4 91 11.4
G09.DR1.80 2.0 2.0 263 0.0 3.9 3.5 368 2.9 4.5 3.7 270 8.5
G09.DR1.85 2.8 2.3 204 0.1 4.3 2.6 132 2.6 4.7 2.7 103 5.2
G09.DR1.87 5.1 2.9 140 17.6 5.7 2.7 379 189.9 5.8 2.7 720 454.3
G09.DR1.99 4.1 3.0 249 3.1 5.1 2.9 140 17.6 5.5 3.0 799 252.7
G09.DR1.113 4.7 3.0 157 7.9 5.4 2.8 255 64.1 5.6 2.8 568 226.1
G09.DR1.125 3.3 2.4 191 0.4 4.4 2.7 132 3.3 4.8 2.7 92 5.8
G09.DR1.127 5.1 3.1 186 23.4 5.7 2.9 568 284.7 5.9 2.9 1190 945.3
G09.DR1.159 2.0 2.0 263 0.0 4.0 2.8 209 2.1 4.5 2.9 124 3.9
G09.DR1.179 4.9 3.0 147 11.7 5.5 2.8 568 179.6 5.7 2.8 568 284.7
G09.DR1.185 3.8 2.3 164 1.0 4.5 2.0 79 2.5 4.8 2.1 73 4.6
G09.DR1.276 4.6 3.1 157 6.3 5.4 2.9 255 64.1 5.7 2.9 568 284.7
G09.DR1.294 4.5 2.8 124 3.9 5.2 2.6 110 17.4 5.5 2.6 379 119.9
G09.DR1.328

Notes. Pressure is P = nT with units of K cm-3.

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