\begin{table}%T1
\caption{\label{table:1}Spin parameters of the models.}
\small%\centering
\par
\begin{tabular}{lll}
\hline\hline
   $P$~(s) & $R_{\rm c}$~(m) & $\omega_{\rm s}$ \\
\hline
   7 & $6.1\times 10^{6}$ & 0.71 \\
   18.7 & $1.2\times 10^{7}$ & 0.26 \\
   100 &  $3.6\times 10^{7}$ & 0.05 \\
\hline
\end{tabular}
\end{table}