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Table 8
CND model physical parameters.
| LVG model | PDR model | |||
| CND | ETD | CND | ETD | |
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| ISM phase 1 | ||||
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| Density n(H2) (cm-3) | 300 | 100 | 300 | 300 |
| Temperature Tk (K) | 25–80 | 100 | – | – |
| UV radiation field G (G0) | – | – | 300 | 300 |
| Column density NH (1021 cm-2) | 5–10 | 13 | ||
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| ISM phase 2 | ||||
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| Density n(H2) ( cm-3) | 10 000 | 10 000 | 30 000 | 18 000 |
| Temperature Tk (K) | 25 | 30 | – | – |
| UV radiation field G (G0) | – | – | 3000–30 000 | 10 000 |
| Column density NH (1021 cm-2) | 2–4 | 13 | ||
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| Either ISM phase 3: PDR | ||||
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| Density n(H2) ( cm-3) | – | – | 550 000 | |
| UV radiation field G (G0) | – | – | 55 000 | |
| Column density NH (1021 cm-2) | – | – | 7 | |
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| Or ISM phase 3: XDR | ||||
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| Density n(H2) ( cm-3) | – | – | 30 000 | |
| X-ray flux Fx (erg cm-2 s-1) | – | – | 5–16 | |
| Column density NH (1021 cm-2) | – | – | 10–100 | |
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