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Table 1

PDR model parameters.

Parameter Value Comment
G0 100 Radiation field in Habbing unit
ζ 5 × 10−17 s−1 Cosmic rays ionisation rate
vturb 3 km s−1 Turbulent velocity
Pth 3 × 106 K cm−3 pressure
RV 3.1 Optical total-to-selective extinction
amin 1 nm Grain minimum radius
amax 300 nm Grain maximum radius
α 3.5 Size distribution power-law index

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