\begin{table}%t1
%\centering
\par
\caption{\label{TblPars}Model parameters.}
\begin{tabular}{lll}
\hline\hline  \noalign{\smallskip}
Parameter & Description &  Value(s)\\
          \multicolumn{3}{l}{\underline{Central object \& observer:}}\\
         $M_{*}$(\msun)  & Mass of the central object.  & 0.5\\
         \rstar\ (\rsun) & Radius of the central object. & 2.09\\
$T_{*}({\rm K})$  & Surface temperature of the central object. & 4000\\
$i$\ (degrees) & {\bf Inclination angle} & 18.2, 31.8, 41.4, 49.5, 56.7, 63.3, 69.5, 75.6, 81.4, 87.2\\
\noalign{\smallskip}
         \multicolumn{3}{l}{\underline{Envelope Properties:}}\\
         \mdotenv\ ($\times$$10^{-6}~$\msun~yr$^{-1}$)& {\bf Mass infall rate} &  1, 5, 7.5, 10, 25, 50, 100\\
         \rmaxenv\ (AU) & {\bf Envelope outer radius} & 5000, 10~000, 15~000 \\
         \rminenv\ (\rstar) & Envelope inner radius & 42.75 \\
         $R_{\rm C}$\ (AU) & Centrifugal radius & Equal to \rmaxdisk \\
         \noalign{\smallskip}
         \multicolumn{3}{l}{\underline{Disk properties:}}\\
         \mdisk\ (\msun)  & Disk mass & 0.05 \\
         \mdotdisk\ ($\times$$10^{-8}$~\msun~yr$^{-1}$) & {\bf Disk accretion rate/Luminosity\tablefootmark{a}} & 1, 10, 100, 1000\\
         \rmaxdisk\ (AU) & {\bf Disk outer radius} & 5, 100, 500\\
         \rmindisk & Disk inner radius &  Set by dust destruction radius.\\
         $\alpha$ & disk radial density exponent & 2.125 \\
         $\beta$ & disk scale height exponent & 1.125 \\
         \noalign{\smallskip}
         \multicolumn{3}{l}{\underline{Cavity properties}}\\
         \thetac\ (degrees) & {\bf Cavity opening angle} & 5, 15, 25, 45\\
         $b$ & {\bf Cavity shape exponent} & 1.5, 2.0 \\
\hline
\end{tabular}
\tablefoot{Parameters in bold are model grid variables.
\tablefoottext{a}{See Sect.~\ref{SecModel} for the coupling between \mdotdisk\ and luminosity.}}
\end{table}