Velocity centroid (left) and dispersion (right) maps generated using the SoFiA software for the high-resolution H I image. The blue circles indicate the five regions from which the H I absorption lines were extracted, each with a size of 2.5″ × 2.5″. NW corresponds to the NW1 component in the EVN images shown in Fig. 2, where “NWa” and “NWb” are defined following Sales et al. (2019). “SE1” and “SE2” were selected based on the H I absorption image. The line profiles of these regions are shown in Fig. A.1, and the corresponding parameters are presented in Table A.1.