Profile of the TeV emission along the slice defined to contain the maximum of the two γ-ray excesses, as illustrated in the inset. The width of the slice is defined to be twice the HESS angular resolution. The profile on the low energy image is shown in red while the one for the high energy image is shown in blue. The relative positions of WR 20a and the two Fermi LAT pulsars with respect to the center of the slice are indicated by dashed lines.