Table B.1
Overview of the most important model parameters (see also Andree-Labsch et al. (2017)). All abundances are given with respect to the total H abundance.
| Model Input Parameters | ||
|---|---|---|
| He/H | 0.0851 | (1) |
| O/H | 4.47 10−4 | (2) |
| C/H | 2.34 10−4 | (2) |
| 13C/H | 3.52 106 | (3) a |
| 18O/H | 8.93 10−7 | (4) b |
| N/H | 8.32 10−5 | (2) |
| S/H | 7.41 10−6 | (2) |
| F/H | 6.68 10−9 | (2) |
| Z | 1 | solar metallicity |
| ζCR | 2 10−16 s−1 | CR ionisation rate (5) |
| RV | 5.5 | visual extinction/reddening (7,8) |
| σD | 8.41 −22 cm2 | UV dust cross section per H (8) |
| ⟨A(λ)∕AV⟩ | 2.40 | mean FUV extinction |
| τUV | 2.2AV | FUV dust attenuation |
| vb | 1 km s−1 | Doppler width |
| n0 | 103,…,7 cm−3 | total surface gas density |
| M | 10−3…,3 M⊙ | cloud mass |
| χ | 100…,6 | FUV intensity w.r.t. (6) c |
| α | 1.5 | density power law index |
| Rcore | 0.2Rtot | size of constant density core |
| Ntot∕AV | 1.89 1021 cm−2 | (8) |
References. (1) Asplund et al. (2005); (2) Simon-Diaz & Stasinska (2011); (3) Langer & Penzias (1990); (4) Polehampton et al. (2005); (5) Hollenbach et al. (2012); (6) Draine (1978); (7) Röllig et al. (2013); (8) Weingartner & Draine (2001a).
Notes. (a) based on a 12C/13C ratio of 67 (b) based on a 16O/18O ratio of 500 (c) χ = 1.71 G0 where G0 is the mean ISRF from (Draine 1978).
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