Continuum emission of 1.4 GHz from the nuclear region of TXS 2226-184 as observed with the VLBA in 2002 (Taylor et al. 2004). Contours are −1, 1, 2, 4, 6, 8, …, 26 × 3σ, where σ = 43.23 μJy beam⁻¹. The red and blue crosses indicate the positions of the red-shifted and blue-shifted H₂O masers with respect to the systemic velocity of the galaxy ( km s⁻¹), respectively, detected with the VLBA in epoch 2017.45 (see Sect. 4.2). The size of each cross corresponds to the absolute position error.