\begin{table}%t4
%\centering
\par
\caption{\label{tab4}List of the identified lines in the X-ray spectrum of WR~22.} 
\begin{tabular}{lllcc}
\hline\hline
Ion & Energy & Type & $\log T$ (max) & $kT$ (max)  \\
& (keV) && (K) & (keV) \\
\hline
\ion{Mg}{xi} & 1.35 & He4 & 6.8 & 0.54 \\
\ion{Mg}{xii} & 1.47 & Ly$\alpha$ & 7.0 & 0.86 \\
\ion{Si}{xiii} & 1.86 & He4 & 7.0 & 0.86 \\
\ion{Si}{xiv} & 2.006 & Ly$\alpha$ & 7.2 & 1.37 \\
\ion{S}{xv} & 2.46 & He4 & 7.2 & 1.37 \\
\ion{S}{xvi} & 2.62 & Ly$\alpha$ & 7.4 & 2.16 \\
\ion{S}{xvi} & 3.11 & Ly$\beta$ & 7.4 & 2.16 \\
\ion{Ar}{xvii} & 3.14 & He4 & 7.3 & 1.72 \\
{Fe}~{K} & 6.7 & K & 7.8 & 5.44 \\
\hline
\end{tabular} 
\end{table}