Variation in the modelled spectrum with the flaring index of the outer disk (β^(o)), with other parameters were kept fixed to their best fiducial model values presented in this paper. The full SED shows no considerable differences in the optical and millimetre fluxes with β. Variation due to β(^o) mainly arises in the FIR wavelengths within ~30 − 500 μm and in the modelled PAH fluxes (see Sect. 6). We note that the scale height is defined at 25 au, hence, the model with higher β(^o) would have a larger scale height at the inner edge of the outer disk at 31 au. For an appropriate comparison among different models with varying β(^o), so that they have the same scale heights at 31 au, we re-adjust the scale heights at 25 au. For the models with β^(o) = 1.3 and β^(o) = 1.5, the adjusted scale heights at 25 au will be 1.82 and 1.745 au, respectively).