Spatial distribution of the radio continuum and the spectral features of H₂O maser emission detected at 22 GHz with ATCA. The radio continuum and the H₂O maser observations were carried out simultaneously in 2013. The star with error bars shows the relative position of the peak of the radio continuum detected at 22 GHz with respect to the brightest H₂O maser feature. The size of each circle scales linearly with the intensity of emission measured in each channel related to H₂O spectral features. Each filled circle represents the brightest channel of each spectral figure in Fig. 2. The dots in the color bar indicate the velocity of the stellar source v_⋆,lsr. The blue and red arrows indicate a possible orientation (projected on the plane of the sky) of the axis defined by the high-velocity outflow traced by the H₂O maser emission.