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Table 1

Parameter grid.

Parameter Min Max Sample space
Density nH (cm−3) 1 × 103 1 × 107 log
Temperature T (K) 10 100 linear
Cosmic-ray ionization rate ζ (s−1) 1 × 10−17 1 × 10−14 log
Radiation field FUV (Habing) 0.1 100 log
Initial abundance of carbon fO/fO,⊙ (−) 0.05 × 1.77 x 10−4 1.0 × 1.77 × 10−4 linear
Initial abundance of oxygen fC/fC,⊙ (−) 0.05 × 3.34 x 10−4 1.0 × 3.34 x 10−4 linear

Notes. The parameters were sampled using a Sobol sampling scheme.

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