Continuum emission at 345 GHz. Emission from H₂O maser was subtracted. The white cross marks the position of the H₂O maser. Solid black lines are the 50%, 70%, and 90% of the peak of the Brγ line emission (see Fig. 6). Dashed black contours correspond to the 2D Gaussian fit to the continuum emission. Offset positions are relative to α: 12^h01^m5495, δ: –18°53′05.̋6 J2000.0. The offset position (0, 0) corresponds to the position of the SSC B1, which coincides with the continuum peak emission.