\begin{table}%t1
\caption{Parameters of the model grid.}
\label{tab:mmobs:model_grid}
%\centering
%\small{
{
\begin{tabular}{lccccc}
\hline\hline
Parameter & \multicolumn{4}{c}{Values}\\
\hline 
    $M_{\rm disk}$ &$[M_\odot]$ & 5 \e {-3}                 & $\mathbf{1 \e {-2}}$          & 5 \e {-2} & 1 \e {-1}\\
    $\alphat$         &            & $\mathbf{5 \e {-4}}$      & 1 \e {-3}                     & 5 \e {-3}                    & --      \\
    \uf               &[m/s]       & 1                       & {\bf 3}                  & 10                         & --      \\
    $f_{\rm vac}$    &[\% vol.]   & {\bf 10}             & 30                          & 50                         & --      \\
    $\xi$             &            & 1.0                     & {\bf 1.5}                & 1.8                        & --      \\
\hline
\end{tabular}}
\tablefoot{$M_{\rm disk}$ is the total disk mass, $\alphat$ is the turbulence parameter, \uf is the critical collision velocity, $f_{\rm vac}$ is the grain volume fraction of vacuum, and $\xi$ is the index of the distribution of fragments. The parameters of the fiducial model are highlighted in bold face.}
\end{table}