Rosseland mean opacities κross as a function of temperature for the three different compositional assumptions. We use a 50:50 mixture between water andsilicates, the complex chemical model without carbon grains and with carbon grains noted as vY, no C and vY, w C in Table 1, respectively. We only show here the opacities for μm-and mm-sized dust. A clear difference between the different chemical compositions is visible.
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