\begin{table}%T1
  %\centering
\small
  \caption{Masses of the modeled disks producing $0.5 M\sbs{lunar}$ of dust.}
  \label{tabDiskMasses}
  \begin{tabular}{cccrr}
    \hline\hline
    \multicolumn{3}{c}{Model} & \multicolumn{2}{c}{Quasi-steady state} \\
    \small{Material} & \small{slope $\alpha$} & \small{$e\sbs{max}$} &
\small{Total mass} &
\small{Mass-loss rate} \\
    \hline
    rock & 2 & 0.125 & 2.5 $M_\oplus$ & 0.9 $M_\oplus/\mbox{Gyr}$ \\
    rock & 2 & 0.375 & 1.4 $M_\oplus$ & 1.7 $M_\oplus/\mbox{Gyr}$ \\
    rock & 4 & 0.375 & 1.1 $M_\oplus$ & 2.9 $M_\oplus/\mbox{Gyr}$ \\
    rock & $\infty$ & 0.375 & 0.7 $M_\oplus$ & 9.0 $M_\oplus/\mbox{Gyr}$ \\
    ice & 2 & 0.375 & 1.6 $M_\oplus$ & 19.8 $M_\oplus/\mbox{Gyr}$ \\
    \hline
  \end{tabular}
\end{table}