\begin{table}%t1
%\centering
\par
\caption {The parameters of the polytropic EOSs.\label{tab:poleos}}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{tabular}{c c c c c}
\hline\hline
%&&&&\\
EOS &  $K_{\rm _S}$ & $\gamma_{\rm _S}$
& $\lambda$& $\lambda_{\rm n}$\\
%%%%%%%%%%%%%
 & $({\rm erg~cm}^{-3})$ & &&\\
\hline 
%&&&&\\
PolW &  $5.11\times 10^{11}$ & 3.5  &$1.44$&$1.4$\\
%\hline
%&&&&\\
PolS1 & $1.602\times 10^{11}$ & 4 & $1.66$&$1.6$\\
%\hline
%&&&&\\
PolS2  & $1.257\times 10^{11}$ & 4 &$1.77$&$1.7$\\
%&&&&\\
\hline
\end{tabular}
\end{table}