Main emitting region for the [OI] 0.63 µm (orange boxes) and o–H₂ 2.12 µm (red boxes) spectral lines. The columns show the three models with varying L_acc (increasing from left to right). The top row shows the models with g/d = 100 and the bottom row with g/d = 1000 in the wind. The coloured contours show the molecular hydrogen number density . The borders of the line emission boxes indicate where the total emission reaches 15% and 75% in the radial (integrated inside-out) and vertical (integrated from top to bottom) directions. The solid white line shows where the radial visual extinction A_V,rad reaches unity, and the white dotted line T_gas = 1000 K. The grey arrows indicate the 2D velocity field (vertical and radial components of the wind).