\begin{table}%t1
%\centering
\par
\caption{\label{tab1}Dimensions of the blue (s$_b$) and red (s$_r$) components during the events EE~I and~II.}
\small \begin{tabular}{lcclcrr}
\hline \hline
Line & Wavelength, & Formation temperature, &
\multicolumn{4}{c}{Dimension ({\it FWHM})} \\
& $\lambda$/{\AA} & $T_{\rm F}$/K &\multicolumn{2}{c}{EE~I} &
\multicolumn{2}{c}{EE~II} \\
&  & & s$_{\rm b}$/Mm  & s$_{\rm r}$/Mm & s$_{\rm b}$/Mm  & s$_{\rm r}$/Mm \\
\hline
N~{\sc iv} & 765.1 & $1.4\times10^5$   & 9.6   & 4.7  & 0.6    & 0.4\\
S~{\sc v}  & 786.4 & $1.5\times10^5$   & 7.7    & 4.4  & 0.6    & 0.7  \\
O~{\sc iv} & 787.7 & $1.5\times10^5$   & 10.2   & 4.6  & 0.5   & 0.4  \\
Ne~{\sc viii} & 770.4 & $6.2\times10^5$ & 10.2   & 7.4  & 0.4  & 0.5  \\
\hline 
\end{tabular}
\end{table}