\begin{table}%t9
\caption{\label{tab:bkpeg_abund}
Abundances ($[{\rm El./H}]$) for the primary and secondary
components of \BK.}
%\centering
\par
\begin{tabular}{lrlrrlr} \hline
\hline\noalign{\smallskip}
             &  \multicolumn{3}{c}{Primary} & \multicolumn{3}{c}{Secondary} \\
Ion          &[El./H]&  rms& $N$\tablefootmark{a}     &[El./H]& rms & $N$\tablefootmark{a}          \\
\noalign{\smallskip}
\hline
Si\ione\     &$-0.19$& 0.05& 12    &$-0.12$& 0.09& 10   \\  %alpha   man03 .tst files
Ca\ione\     &$-0.05$& 0.05&  4    &  0.00 & 0.07&  6   \\  %alpha 
Sc\itwo\     &$-0.14$& 0.09&  3    &$-0.18$& 0.09&  3   \\  
Ti\ione\     &       &     &       &$-0.17$& 0.06&  3   \\  %alpha   
Ti\itwo\     &$-0.07$& 0.09&  3    &  0.01 & 0.18&  3   \\  %alpha   
Cr\ione\     &$-0.20$& 0.03&  3    &$-0.19$& 0.03&  3 \\  %          
Cr\itwo\     &$-0.23$& 0.05&  3    &$-0.04$& 0.03&  4 \\  %          
Fe\ione\     &$-0.12$& 0.07& 78    &$-0.12$& 0.09& 70      \\
Fe\itwo\     &$-0.15$& 0.09& 10    &$-0.11$& 0.11& 12 \\
Ni\ione\     &$-0.23$& 0.08&  6    &$-0.24$& 0.13& 11   \\    %      
\hline
\end{tabular}            
\tablefoot{\tablefoottext{a}{Number of lines used per ion.}}
\end{table}