Channel maps of the C¹⁸O (2−1) emission from PdBI in L1448-2A. In the first panel, the outflow directions are shown by blue and red solid arrows and the equatorial axis is represented by a solid black line. The clean beam is shown by an ellipse on the bottom left. Contours are drawn in black solid lines at 5σ, 7σ and so on. The systemic velocity is estimated to be v_sys = 4.0 km s⁻¹ (see Table E.2).