\begin{table}%t4
\caption{Summary of the measured rotational velocities for the selected
helium lines shown in Fig.~\ref{fig:rotation}.}
\label{tab:rotation}
%\centering
$$
\begin{tabular}{ccc}
\hline
\hline
Line & Rot. Vel. & Average \\
(\AA) & (km~s$^{-1}$) & (km~s$^{-1}$) \\
\hline
\multirow{2}*{\ion{He}{i}$\lambda$4026} & 280 &  \multirow{2}*{320~$\pm$~40}\\		 & 360 &	    \\
\multirow{2}*{\ion{He}{i}$\lambda$4144} & 320 &  \multirow{2}*{350~$\pm$~30}\\		 & 380 &	    \\
\multirow{2}*{\ion{He}{i}$\lambda$4388} & 260 &  \multirow{2}*{290~$\pm$~30}\\		 & 320 &	    \\
\multirow{2}*{\ion{He}{i}$\lambda$4471} & 260 &  \multirow{2}*{300~$\pm$~40} \\
                 & 340 &             \\
\hline
\end{tabular}
$$
\end{table}