Top left: raw continuum-subtracted map of H₂ 1–0 S(1) line emission in DG Tau. Contours start at 2.7 × 10^-4 erg s^-1 cm^-2 sr^-1 and increase by factors of 2. The cross denotes the centroid of the continuum image (shown as an insert). Bottom left: H₂ 1–0 S(1) map after deconvolution by the continuum image. The lack of H₂ emission at the central position results from our continuum subtraction procedure. Right panel: deconvolved H₂ 1–0 S(1) image (yellow contours) superimposed on the deconvolved channel maps of [Fe II]1.64 μm obtained at the same epoch and resolution by Agra-Amboage et al. (2011), in two velocity ranges: MV (red contours; –160 km s^-1 < V < 120 km s^-1) and HV (background colour image; V <  − 160 km s^-1 and V > 120 km s^-1).