Schematic diagram showing a possible model for the edge‐brightened bicone structure in Cygnus A: the outflows associated with the nuclear activity hollow out the funnels in the dust lane (funnel‐opening half‐angle, φ), the funnels are then illuminated by the radiation cones of the central quasar + obscuring torus (radiation cone–opening half‐angle, θ). The illuminated regions are shaded black.