Predictions of photoionization models for the absorber ABS1 with Z = Z_⊙, in the case it is illuminated by QSO1, QSO2 (placed at a projected distance of 89 kpc) and the UVB (details on the models assumptions in Appendix F). All symbols and colors are explained in the caption of Fig. F.1. Similarly to Fig. F.1, the models in agreement with the observations are characterized by 4.1 ≲ log(T/K) ≲ 4.4, −1.7 ≲ log U ≲ −0.7, and Z >  0.3 Z_⊙.