Integrated map of the blueshifted wing emission in the velocity range 3−5 km s^-1. The LSR velocity of the BD is +6 km s^-1. The black squares mark the positions at which observations we made. The level are 0.1, 0.15, 0.2, and 0.25 K km s^-1. Clearly we see a blue outflow lobe at a PA of ~20°. We have superimposed a UKIDSS K-band image taken from Luhman et al. (2009) of the BD binary at the same scale and assuming that FU Tau-A is at the central position.