Cooling curves

The following plot is produced with the default settings from the hazy_coolingcurve program (solar abundances, no photoionzation, \(n_h = 1 \, \mathrm{cm}^{-3}\)).

In CIE, there is no dependence on density in the cooling curve itself. (Check this by changing n.)

Here is a plot with the Haardt & Madauu background included in Cloudy (‘05 private communication):