Include optical and UV levels¶
To activate optical and UV levels for the atoms or O, C, C+, Si+ and H(for how to activate H) one needs to activate the switch
.true. ! UVpumping
For details, see Appendix A.4 in Woitke et al. 2011.
You may also require the Voigt profile line profile:
.true. ! Voigt_escape
and estimate the atom/ion-electron collision rates
.true. ! gbar