Table 5.
Median [C II]/[O I] and ([C II]+[O I])/TIR ratios and rms values as observed and after correction for [O I] self absorption.
Region | [C II]/[O I] | ([C II]+[O I])/TIR | Solutions of PDR models |
|||
---|---|---|---|---|---|---|
Moderate solution |
Low-FUV solution |
|||||
n | G0 | n | G0 | |||
% | (cm−3) | (cm−3) | ||||
Observed ratios | ||||||
All | 4.51 ± 2.58 | 0.75 ± 0.31 | 60 | 20 | 104 | 1 |
Bright, inner | 4.79 ± 2.43 | 0.68 ± 0.19 | 60 | 20 | 104 | 1 |
Bright, outer | 3.71 ± 3.68 | 0.72 ± 0.19 | 30 | 20 | 104 | 1 |
Weak, inner | 3.83 ± 2.54 | 0.91 ± 0.27 | 100 | 30 | 104 | 1 |
Weak, outer | 3.01 ± 2.36 | 1.07 ± 0.54 | 300 | 60 | 104 | 1 |
Ratios with corrected [O I] | ||||||
All | 3.0 ± 2.1 | 0.82 ± 0.53 | 200 | 60 | 104 | 1.5 |
Bright, inner | 3.06 ± 1.92 | 0.76 ± 0.2 | 200 | 60 | 104 | 1.5 |
Bright, outer | 2.78 ± 2.69 | 0.77 ± 0.18 | 200 | 70 | 104 | 1.5 |
Weak, inner | 3.27 ± 2.28 | 0.94 ± 0.89 | 300 | 60 | 104 | 1.5 |
Weak, outer | 2.46 ± 2.02 | 1.12 ± 0.55 | 600 | 80 | 104 | 2.0 |
#1 | 4.59 ± 0.97 | 0.76 ± 0.25 | 900 | 20 | 5 × 103 | 3.0 |
Notes. Solutions of the PDR models of Pound & Wolfire (2008), Kaufman et al. (2006) are shown for the median ratio of all positions and for position #1 with one of the highest observed [C II] intensities 1.2 × 10−4 erg s−1 cm−2 sr−1.
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