\begin{table}%t1
  \caption{Properties of the initial disk galaxy model.}
   \label{tab_inimod}
   %\centerline
{
   \begin{tabular}{lccc}
   \hline\hline
   Component          & Mass$^1$ & Radius$^2$ & No. of particles \\
   \hline
   disk               & 0.34     &  18.0      & 20~000            \\
   \hspace{5mm}stars  & 0.27     &            & 16~000            \\
   \hspace{5mm}clouds & 0.07     &            & 4000             \\
   bulge              & 0.17     &  4.0       & 10~000            \\
   DM halo            & 1.94     &  87.9      & --                \\
   hot gas            & 0.01     &  25.       & 5000             \\
   total              & 2.47     &            & 35~000            \\
   \hline
\end{tabular}}
\par
$^1$ In units of $10^{11}~{M}_{\odot}$, $^2$ in~kpc.
\end{table}