Modelling the relative population levels of the H₂ NIR transitions using single excitation-temperature LTE models. The orange circles and diamonds represent de X-shooter and EMIR measurements respectively. Upper limits were obtained with the X-shooter spectrum. They correspond to H₂ 1–0 S(6) λ1.7880 (orange), the 2–1 transitions (blue) S(2) λ2.1542, S(3) λ2.0729 and S(4) λ2.0041 and the H₂ 2–0 transitions (light green) S(2) λ1.1382, S(3) λ1.1175 and S(4) λ1.0998 in the J band. The solid red line shows the single-temperature fit based on the fluxes of the lines detected in the X-shooter spectrum and assuming fully thermalised LTE gas conditions. The EMIR data are shown for comparison.