Notes. We executed 15 joint fitting procedures – one for each combinationof species and dust particle size. The table also contains the quantitative goodness-of-fit, parametrized as reduced χ² (). ⁽¹⁾With 50% magnesium and 50% iron. ⁽²⁾With 40% magnesium and 60% iron. ⁽³⁾Without uncertainties. ⁽⁴⁾Including uncertainties. ⁽⁵⁾These values were derived based on a tail-model with a cross-section of 0.05  ×   0.05 R_⊙ at the beginning and 0.09  × 0.09 R_⊙ at its end (see Sect. 4.2). ⁽⁶⁾τ_max is a derived parameter, which follows from ρ(0).