| Gas density profile | The same, standard and arbitrary, |
| double-peak+halo distribution at | |
| all four evolutionary steps | |
| (see Figs. 2, 4-6; cf. Sect. 4) | |
| Chemical abundances | He = -0.958, C = -3.30, N = -3.75, |
log[ N(X)/ N(H)] |
O = -3.30, F = -6.522, Ne = -3.90, |
| Na = -5.52, Mg = -5.30, Al = -6.568, | |
| Si = -5.00, P = -6.70, S = -5.10, | |
| Cl = -6.66, Ar = -5.60, K = -7.11, | |
| Ca = -6.64, Fe = -6.30, | |
| other elements = CLOUDY default | |
| Dust | CLOUDY default |
| Local filling factor | 1.0 |