\begin{table}%tA.1
\caption{\label{HE0508}Abundances for HE 0508-1555 for different model \mbox{atmospheres}.}
\par
%\centering
\small
\begin{tabular}{lllllllcc}
\hline
\hline
Ion & $A$ &$\sigma_A$ &$A$ &$\sigma_A$ &$A$ &$\sigma_A$ &$A$ &$\sigma_A$ \\
    & \multicolumn{2}{c}{MARCS} 
&\multicolumn{2}{c}{ATLAS}&\multicolumn{2}{c}{ATLAS}&\multicolumn{2}{c}{Cohen}\\
    &          &                 
&\multicolumn{2}{c}{NOVER}&\multicolumn{2}{c}{OVER}&\multicolumn{2}{c}{et~al. 
\cite{CCM04}}\\ 
\hline
\ion{Mg}{i}  &5.58&  0.27 & 5.54&0.29&5.68&0.27 & 5.70  0.28\\
\ion{Al}{i}  &3.28&  0.06 & 3.24&0.06&3.38&0.06 & 3.91  0.09\\
\ion{Si}{i}  &5.19&       & 5.14&    &5.31&     & 5.23      \\
\ion{Ca}{i}  &4.15&  0.08 & 4.11&0.08&4.24&0.08 & 4.22  0.11\\
\ion{Sc}{ii} &0.99&  0.03 & 0.96&0.04&1.04&     & 1.02  0.03\\
\ion{Ti}{i}  &3.18&  0.13 & 3.14&0.13&3.26&0.13 & 3.23  0.14\\
\ion{Ti}{ii} &3.05&  0.09 & 3.02&0.09&3.10&0.09 & 3.08  0.10\\
\ion{Cr}{i}  &2.94&  0.03 & 2.89&0.03&3.01&0.03 & 2.99  0.04\\
\ion{Mn}{i}  &2.31&  0.05 & 2.26&0.05&2.38&0.04 & 2.35  0.05\\
\ion{Fe}{i}  &5.00&  0.16 & 4.96&0.16&5.09&0.15 & 5.07  0.17\\
\ion{Fe}{ii} &5.11&  0.16 & 5.09&0.16&5.16&0.16 & 5.13  0.17\\
\ion{Co}{i}  &2.88&  0.11 & 2.84&0.11&2.96&0.10 & 2.92  0.11\\
\ion{Ni}{i}  &3.77&       & 3.72&    &3.86&     & 3.83      \\   
\hline
\end{tabular}
\end{table}