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Table 1

Input parameters of the Meudon PDR code.

Parameters Values
20
Pth/k (K cm–3) 105–106–107108–109
(Mathis unit) 102–103104–105

Transfer FGK approximation

Cosmic rays (s–1 per H2) 5×10–17
Rv 3.1
Nh/E(B-V) (cm–2) 5.8×1021
Dust to gas ratio 0.01
Grain size distribution ∝α–3 5
Min grain radius (cm) 1×10–7
Max grain radius (cm) 3×10–5

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