\begin{table}%t2
%\centering
\par
 \caption{Parameters of the double Gaussian fit executed on
$\rm H\alpha$ over the bulk of the HII regions. The flux of each component $F$ is given
in $10^{-15}$~erg/s/cm$^2$. The position with respect to the nominal center wavelength $v$ and the $\sigma$ in km~s$^{-1}$. The dimension along the slit, on
which the lines were integrated, $d$ is in \arcsec, this is basically the {\it FWHM} of
the spatial profile. The virial masses $M $are in units of $10^6~M_{\odot}$.}
\label{fit2}
\par
\begin{tabular}{ccccccccc} 
\hline \hline
Name &  $F_1$ & $v_1$  & $\sigma_1$ & $F_2$ & $v_2$  &  $\sigma_2$ &  $d$   &  $M$/$\eta$  \\ 
\hline 
5253-1 &   44.9  &  8.7  & 23.1  &  16.2  &  --27.4  &  18.5  & 4.2  &  1.73  \\ 
5253-5 & 248.0  &  2.0 &  19.0  &  254.3  &  --9.4 &  49.0 & 1.6   &  0.81  \\                      
He2-10         &  11.9   &  1.1   &  33.8  &  13.1  & --19.5  &  93.5  &  2.5  & 13.3   \\ 
\hline 
\end{tabular} 
\end{table}