Make these plots gor from -0.5 to +0.5 arcsec - there is nothing else to see. Position velocity diagrams for subtracted image of DF Tau; the two components of the binary are not resolved.T he x-axis shows the velocity with respect to the feature rest wavelength in the velocity frame of the star (which one? Or do they have the same radial velocity?) and the y-axis the distance along the slit. The emission from the two stars has been removed and only the resolved emission can be seen. In the left panel, resolved emission is visible around \(\pm200\ \mathrm{km\ s^{-1}}\).