Simplified schematic view of the L1489 IRS system at scale. The external warped disk (discussed in Sect. 5.1.1) is drawn in green, the intermediate disk in yellow and the inner disk in orange. Blue (respectively red) colored structures correspond to blue-shifted (respectively red-shifted) emissions. White arrows indicate the direction of moving material (for the outflow, see Sect. 3.3.3, for the streamers, see Sect. 3.3.4 and 4). The accretion shocks (see Sect. 5.2) are represented in orange. The potential second outflow along the primary axis (see Sects. 5.3) is drawn with dashed contours.