Synthetic [S ii] emission maps obtained from models M1a (bottom panels) and M1b (top panels). The right panels display the yz projection for both models, while the left panels display the xz projection. The angle between the precession axis and the plane of sky was set to 25° for all models. The vertical color bar gives the [S ii] flux in units of erg  s^-1cm^-2sr^-1. The vertical and horizontal axes are given in units of 10¹⁷ cm.