Continuum emission at 0.87 mm. The central 20″ × 20″ is shown in the main panel for the natural weighting image (contA). The red ellipse at the bottom left corner indicates the synthesized beam size of 0.22″ × 0.18″ at PA = 86°. The contours are 3, 5, and 9 times the σ_rms. The zoom-in of the central 3″ × 3″ at high resolution (0.09″ × 0.07″ at PA = 115°, contB) is shown in the bottom-right corner. The black cross indicates the adopted phase center, while the white star represents the peak of the continuum emission, assumed to be the AGN position (see Table 1). The color scale is in Jy beam⁻¹.