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Table 4

TIR and G0(TIR) and the parameters used to estimate the charging parameter γ = G0T1/2/ne.

Object Sub TIR G0(TIR) Adopted parameters for γ
region [W m-2 sr-1] [Habing field] G 0 nH [cm-3] T [K]
Horsehead 1 2.7 × 10-5 210 100−210 (0.3−2) × 105 234−550
2 7.0 × 10-5 550 100−550 (0.1−2) × 105 234−550
3 6.0 × 10-5 470 100−470 (0.1−2) × 105 234−550
Ced 201 1 1.2 × 10-4 940 200−940 4 × 102−1.2 × 104 330
2 7.6 × 10-5 600 200−600 4 × 102−1.2 × 104 330
NGC 7023 E 1 1.2 × 10-4 970 120−970 (0.1−1) × 104 258−370
2 1.1 × 10-4 900 120−900 (0.1−1) × 104 258−370
NGC 7023 NW 1 6.3 × 10-4 5.0 × 103 (0.5−1) × 104 150 ± 100 430−450
2 9.8 × 10-4 7.7 × 103 (2.6−7.7) × 103 (0.01−2) × 105 430−450
3 6.9 × 10-4 5.4 × 103 (0.5−5.4) × 103 (0.2−2) × 105 430−450
Carina N 1 2.0 × 10-3 1.6 × 104 (0.7−1.6) × 104 (0.2−1) × 106 296−529
2 2.0 × 10-3 1.5 × 104 (0.8−1.5) × 104 (0.2−1) × 106 292−440
3 1.9 × 10-3 1.5 × 104 (0.8−1.5) × 104 (0.2−1) × 106 290−390
Mon R2 1 1.0 × 10-2 8.2 × 104 (5.2−8.2) × 104 (0.4−4) × 105 314−574
2 1.1 × 10-2 8.5 × 104 (0.9−1.0) × 105 (0.4−4) × 105 314−574
3 1.3 × 10-2 1.0 × 105 (1.0−1.2) × 105 (0.4−4) × 105 314−574

Notes. The uncertainty of TIR and G0(TIR) is ~15% (see text).

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