Figure 3: The Circinus Galaxy (from Tristram et al. ). (a): Sketch of the best-fit physical model where a warm ( K) emission region (yellow) is surrounded by a cooler ( K) one (brown). The water maser emitters are over-plotted (blue and red lines), together with the ionised cone (dashed and dotted light blue line). (b): the dusty torus as derived from the MIR interferometric observations.