Comparison of radial intensity profiles in the 11.3 μm PAH emission feature obtained from the reference T Tauri model. The blue lines shows the intensity profile if dust and PAHs are assumed to have a common radiative equilibrium temperature. The black line shows the simplified treatment with independent dust and PAH temperatures, both in radiative equilibrium. The red line shows the results obtained with the full PAH treatment with a stochastic PAH temperature distribution.