\begin{table}%t5
\caption{\label{WOCat}WO stars catalog.}
%\centerline
 {
\begin{tabular}{c c c c c c c}
\hline\hline
Name & Galaxy & galactocentric radius & $\log({\rm O}/{\rm H)} + 12$ & Cat number & type & Ref. \\
\hline 
DBU 1 & MW & 4.6 & 8.76\textsuperscript{2} & WR 93b & WO3 & 3, 4\\
MS 4 & MW & 9.2 & 8.56\textsuperscript{2} & WR 30a & WO3 & 1\\
Sand 4 & MW & 3.4 & 8.81\textsuperscript{2} & WR 102 & WO2 & 1, 3\\
Sand 5 & MW & 7.8 & 8.62\textsuperscript{2} & WR 142 & WO2 & 1\\
Sand 1 & SMC & & 8.05 & & WO4 & 5, 6\\
Sand 2 & LMC & & 8.35 & & WO3 & 5, 3\\
DR 1 & IC 1613 & & 7.90 & & WO3 & 7, 8\\
NGC 1313 \#31 & NGC 1313 & & 8.23 & & WO3 & 9\\
\hline
\end{tabular}
}
\par
\smallskip
 {(1) \citet{VanDerHucht2001a}, (2) \citet{Rood2007a}, (3) \citet{Drew2004a}, (4) \citet{VanDerHucht2006a},}
 {(5) \citet{Hunter2007a}, (6) \citet{StLouis2005a}, (7) \citet{Kingsburgh1995a},}
 {(8) \citet{Bresolin2007a}, (9) \citet{Hadfield2007a}}.\\
Note: 1st column is the name, 2nd one is the host galaxy, 3rd one is the galactocentric radius (only for Galactic~WO), 4th one is the oxygen abundance, 5th one is the number in \textit{The VIIth Catalogue of Galactic Wolf-Rayet Stars}\textsuperscript{1, 4}, 6th column is the type of the WO star, and the last one the references.
\end{table}