\begin{table}%t4
%\centering
\par
\caption{\label{numbers1}Particle numbers for giant-giant interactions (mass ratio 1:1).}
\begin{tabular}{lccccc}
\hline\hline\noalign{\smallskip}
        & gE0 & gS0 & gSa & gSb & gSd \\
            \hline\noalign{\smallskip}
        $N_{{\rm gas}}$ & -- & -- & 20~000 & 40~000 & 60~000\\
        $N_{{\rm star}}$ & 80~000 & 80~000 & 60~000 & 40~000 & 20~000\\
        $N_{{\rm DM}}$ &40~000 & 40~000 & 40~000 & 40~000 & 40~000\\
            \hline
         \end{tabular}
   \end{table}