\begin{table}%t6 \caption{\label{envelopes}Envelope modeling results.} %\centerline {\small \begin{tabular}{llllllll} \hline\hline Name & Dust mass & Inner radius & Outer radius & Density & Inner temperature & Geometry & Inclination \\ & ($M_\odot$) & (AU) & (AU) & slope & (K) & & (degrees) \\ \hline MWC~137 & 0.005 & 5000.0 & 11~700.0 & --1.0 & 61 & Sphere & \\ R~Mon & 0.008 & 700.0 & 12~000.0 & --1.4 & 62 & Toroid$^1$ & 70.0 \\ MWC~1080 & 0.025 & 6000.0 & 12~000.0 & --1.0 & 44 & Toroid & 80.0 \\ Z~CMa & 0.05 & 2000.0 & 5000.0 & --0.6 & 42 & Toroid$^1$ & 30.0 \\ LKH$\alpha$~215 & 0.0015 & 3500.0 & 7200.0 & 0.0 & 57 & Sphere & \\ \hline \end{tabular}} \medskip $^1$ The dust temperature in the envelope is assumed to be described by a power law, $T(r) = T_{\rm in} (r/r_{\rm in})^{-0.5}$. See Sects.~4 and~5 for a more detailed discussion. \end{table}