Table 6: Ionised boundary layer pressures and internal pressures and densities of clouds observed in molecular line wavelengths. A dash indicates non-detection in the NVSS.
SFO object IBL pressure   Internal pressure Internal molecular density
  (105 cm-3 K/$k_{\rm B}$)   (105 cm-3 K/$k_{\rm B}$) $(10^3~\rm cm^{-3})$
4a 197.5 $\gg$ 8.2 50.0
5b 114.4   32.3 11.0
11c 82.0   25.0 2.5
13d 63.9 $\gg$ 16.3 2.0
16d -   0.3 2.0
18d -   7.8 16.6
20e -   6.9 20.0
25d 66.4   12.5 7.4
37f 112.3 $\gg$ 1.5 3.0
a Jansen et al. (1994);  bLefloch et al. (1997);  c Thompson et al. (2004a);
d De Vries et al. (2002); e Cernicharo et al. (1992); f Duvert et al. (1990).

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