\begin{table}%t1 \caption{\label{tab:TfitABnew}A summary of the dust properties.} %\centerline $${\small \begin{tabular}{rlrr@{.}lr@{.}lll} \hline\hline Species & Chemical & $T_{\rm subl}$ & \multicolumn{2}{c}{A} & \multicolumn{2}{c}{B} & Reference for A and B & Reference for opacity\\ & formula & [K] & \multicolumn{2}{c}{(Eq.~\ref{eq:CCevaplaw})} & \multicolumn{2}{c}{(Eq.~\ref{eq:CCevaplaw})} & &\\ \hline Astron. silicate & MgFeSiO$_{4}$ & 1300 & 28030 & & 12 & 471 & \citet[P94]{P94} & \citet{DraineLee1984}\\ Olivine & MgFeSiO$_{4}$ & 1300 & 28030 & & 12 & 471 & P94 & \citet{Dorschneretal1995}\\ Forsterite & Mg$_{2}$SiO$_{4}$ & 1150 & 26091 & & 13 & 418 & \citet[CF82]{CameronFegley1982} & \citet{1973Pssb...55..677S}\\ Iron & Fe & 1400 & 21542 & & 6 & 6715 & P94 & P94\\ Iron$^{\star}$ & Fe & 1150 & 20686 & & 9 & 1134 & CF82 & \\ Corundum & Al$_{2}$O$_{3}$ & 1500 & 40720 & & 18 & 479 & CF82 & \citet{1995Icar..114..203K}\\ Orthopyroxene$^{\star}$ & MgSiO$_{3}$ & \ldots & 30478 & & 14 & 898 & P94 & \\ Quartz$^{\star}$ & SiO$_{2}$ & \ldots & 26335 & & 11 & 184 & \citet{Schick1960, Lamy1974} & \\ Water ice$^{\star}$ & H$_{2}$O & 150 & 2827 & 7 & 7 & 7205 & P94 & \\ Troilite$^{\star}$ & FeS & 680 & 155 & 91 & --4 & 9516 & P94 (note: $T_{\rm subl}= {\rm const.}$) & \\ \hline \end{tabular}}$$ \smallskip \par $^{\star}$ Not used in the present work, given for completeness. \end{table}