\begin{table}%t6
\caption{Characteristics of the bimodal distributions: the fast rotator mode~$\sqrt{2a}$ from the Maxwellian distribution parameter~$a$, the proportion~$p$ of slow rotators as the excess compared to the Maxwellian fast rotator distribution, the corresponding number~$N_{\rm s}$ of slow rotators in the observed sample, and the mean of the slow rotator distribution~$\mu_{\rm s}$.}
\label{tabmaxwell}
%\centering
\small
    \begin{tabular}{lcccc}
\hline
\hline
% & & & & & \\[-8pt]
Spec. types & $\sqrt{2~a}$ &  $p$ & $N_{\rm s}$ & $\mu_{\rm s}$\\
            & (\ensuremath{{\rm km}~{\rm s}^{-1}})        &      &                & (\ensuremath{{\rm km}~{\rm s}^{-1}}) \\
\hline
       B9     &  $190$ & $0.15$ &  $19$ &   $46$\\
       A0--A1 &  $200$ & $0.24$ &  $66$ &   $59$\\
\hline
    \end{tabular} 
\end{table}