Montage of some of the CO(2−1) emission line profiles observed for FU Tau shown with a zoom on the region of the wings. The central (0,0) position spectrum is repeated as a dark solid line in all the plots, superimposed on the lines observed at the other positions, in color. We detect excess emission in the blue-wing between 3 km s^-1 and 5 km s^-1, at the (0, 20), (10, 20) and (0, 30) positions. This points to a molecular outflow driven by the FU Tau system.