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Table 2:

Physical parameters for the typical interstellar phases considered.
  MCa CNMb WNMc WIMd Orion Bar
G0 0.01 1 1 1 14 000
$n_{\rm H} \; (\rm {cm}^{-3})$ 300 30 0.4 0.1 104
$T \; (\rm {K})$ 20 100 6000 8000 400
$n_{\rm e} \; (\rm {cm}^{-3})$ 0.03 0.045 0.04 0.1 3
$n_{\rm H^{+}}/n_{\rm H}$ 0 $1.2 \times 10^{-3}$ 0.1 0.99 10-4
$n_{\rm C^{+}}/n_{\rm H}$ 10-4 $1.3 \times 10^{-4}$ $1.3 \times 10^{-4}$ 10-3 $2 \times 10^{-4}$

$n_{\rm H}$ the hydrogen density, T the gas temperature, $n_{\rm e}$ the electrons density, $n_{\rm H^{+}}$ the proton density, and  $n_{\rm C^{+}}$the density of atomic carbon ions.
a Molecular cloud. b Cold neutral medium. c Warm neutral medium. d Warm ionized medium.

Source LaTeX | All tables | In the text

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