ARKS CO moment 0 images of the six systems with gas in the sample after subtracting the continuum (¹²CO at the top and ¹³ CO at the bottom row). We selected an appropriate robust parameter for each system to enhance the S/N per beam if necessary. The beam size is shown as a black ellipse in the bottom left corner. The black cross represents the expected stellar position according to Gaia DR3. The bar at the bottom of the top panels represents 50 au. The large and small ticks are spaced by 1 and 0″.2, respectively. The imaging process is described in Mac Manamon et al. (2026). We note that HD 39060 does not have a ¹³CO image as it was not included in the archival observations that we use for ARKS.