Stratification of the gas temperature and dust temperature (Al₂O₃ and silicate dust) for the example of our GX Mon model. The solid line shows the gas temperature (model M21n), the dotted line the dust temperature of the Al₂O₃ dust shell, and the dashed line the dust temperature of the silicate dust shell. The vertical line indicates R_Phot = 2.19 × 10¹³ cm. For the model parameters, see Table 7.