\begin{table}%t6
\caption{\label{Tab:Co:Ni:tar-str}The lowest $\Delta n_{{\rm c}} = 0$ core excitation thresholds (in Rydbergs) for \ion{Co}{x} and \ion{Ni}{xi}. Uncertainties are enclosed in lower parentheses.}
\par
 %\centering
\par
\begin{tabular}{r l l l r r c l l r r r r}  % 13 columns
\hline
\hline
\multicolumn{13}{c}{\vspace*{-2mm}} \\
   &         & \multicolumn{4}{c}{${\rm Co}^{9+}$} &   & \multicolumn{6}{c}{${\rm Ni}^{10+}$} \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
%\cline{3-6}\cline{8-13}
\multicolumn{13}{c}{\vspace*{-2mm}} \\
K  & Config. & Level(mix) & Present\tablefootmark{a} & NIST\tablefootmark{b} & MCHF\tablefootmark{c} &
             & Level(mix) & Present\tablefootmark{a} & NIST\tablefootmark{b} & MCHF\tablefootmark{c} & FAC3\tablefootmark{e} & CIV3\tablefootmark{f} \\
\hline
\multicolumn{13}{c}{\vspace*{-2mm}} \\
%K   Configuration               Level                                                     Present      NIST                    MCHF       FAC3        CIV3
 1 & $\rm 3s^{2}3p^{6}  $ & $\rm {}^{1}\hspace*{-.5mm}S_{0}~(97.0\%)          $               & $0.00000$ & $0.00000            $ & $0.00000$ &
                      & $\rm {}^{1}\hspace*{-.5mm}S_{0}~(97.1\%)          $               & $0.00000$ & $0.00000            $ & $0.00000$ & $0.0000 $ & $0.00000$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
 2 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{0}^{{\rm o}}~(97.5\%)$               & $3.97623$ & $3.999_{(30)}$\tablefootmark{\dag}  & $3.70893$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{0}^{{\rm o}}~(97.6\%)$               & $4.27882$ & $4.27667            $ & $3.95697$ & $4.2998 $ & $4.34736$ \\
 3 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.9\%)$               & $4.00373$ & $4.026_{(28)}$\tablefootmark{\dag}  & $3.73778$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.8\%)$               & $4.31288$ & $4.31002            $ & $3.99197$ & $4.3349 $ & $4.38366$ \\
 4 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{2}^{{\rm o}}~(95.8\%)$               & $4.06022$ & $4.084_{(21)}$\tablefootmark{\dag} & $3.79773$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{2}^{{\rm o}}~(95.2\%)$               & $4.38307$ & $4.38274            $ & $4.06469$ & $4.4086 $ & $4.45723$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
 5 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{4}^{{\rm o}}~(97.7\%)$               & $4.20594$ & $4.199_{(31)}$\tablefootmark{\dag} & $3.91676$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{4}^{{\rm o}}~(97.8\%)$               & $4.52944$ & $4.49482            $ & $4.18448$ & $4.5391 $ & $4.64639$ \\
 6 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{3}^{{\rm o}}~(92.8\%)$               & $4.22715$ & $4.235_{(31)}$\tablefootmark{\dag} & $3.94997$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{3}^{{\rm o}}~(91.3\%)$               & $4.55153$ & $4.53374            $ & $4.22023$ & $4.5785 $ & $4.68656$ \\
 7 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{2}^{{\rm o}}~(93.2\%)$               & $4.26350$ & $4.283_{(25)}$\tablefootmark{\dag} & $3.99798$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{2}^{{\rm o}}~(91.3\%)$               & $4.59721$ & $4.59342            $ & $4.27778$ & $4.6393 $ & $4.73636$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
 8 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{3}^{{\rm o}}~(62.3\%)$               & $4.50743$ & $4.494_{(38)}$\tablefootmark{\dag} & $4.21215$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{3}^{{\rm o}}~(60.3\%)$               & $4.84888$ & $4.80666            $ & $4.49868$ & $4.8593 $ & $4.93579$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
 9 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}D_{2}^{{\rm o}}~(60.5\%)$               & $4.50846$ & $4.511_{(29)}$\tablefootmark{\dag} & $4.22855$ &
                      & $\rm {}^{1}\hspace*{-.5mm}D_{2}^{{\rm o}}~(58.8\%)$               & $4.85545$ & $4.83728            $ & $4.52643$ & $4.8953 $ & $4.97061$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
10 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{1}^{{\rm o}}~(96.7\%)$               & $4.53943$ & $4.53611            $ & $4.26634$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{1}^{{\rm o}}~(96.5\%)$               & $4.88993$ & $4.87373            $ & $4.56612$ & $4.9290 $ & $5.02599$ \\
11 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{2}^{{\rm o}}~(61.4\%)$               & $4.56821$ & $4.573_{(24)}$\tablefootmark{\dag} & $4.29382$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{2}^{{\rm o}}~(60.2\%)$               & $4.92948$ & $4.91337            $ & $4.60454$ & $4.9687 $ & $5.04846$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
12 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}F_{3}^{{\rm o}}~(59.0\%)$               & $4.58588$ & $4.606_{(25)}$\tablefootmark{\dag} & $4.32726$ &
                      & $\rm {}^{1}\hspace*{-.5mm}F_{3}^{{\rm o}}~(56.1\%)$               & $4.94891$ & $4.95018            $ & $4.64195$ & $5.0024 $ & $5.12673$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
13 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.1\%)$\tablefootmark{\bigstar}     & $5.73579$ & $5.73579	 $ & $5.51933$ &
                      & $\rm {}^{1}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.2\%)$\tablefootmark{\bigstar}     & $6.14044$ & $6.14158	 $ & $5.88618$ & $6.2574 $ & $6.41884$ \\
   &                  &                                                                &           &                       & $5.5952^{{\rm d}}$ &
                      &                                                                &           &                       & $5.9728^{{\rm d}}$ &  &           \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
14 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{1}~(74.2\%)          $               & $7.21441$ & $7.178_{(23)}$\tablefootmark{\dag} & $7.01984$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{1}~(75.1\%)          $               & $7.76928$ & $7.720_{(31)}$\tablefootmark{\dag} & $7.53153$ & $7.7562 $ & $7.85347$ \\
15 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{2}~(74.0\%)          $               & $7.22694$ & $7.186_{(31)}$\tablefootmark{\dag} & $7.02926$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{2}~(74.1\%)          $               & $7.78502$ & $7.730_{(32)}$\tablefootmark{\dag} & $7.54354$ & $7.7687 $ & $7.86852$ \\
16 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{3}~(74.4\%)          $               & $7.24842$ & $7.198_{(31)}$\tablefootmark{\dag} & $7.04436$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{3}~(75.3\%)          $               & $7.81290$ & $7.740_{(33)}$\tablefootmark{\dag} & $7.56317$ & $7.7904 $ & $7.89090$ \\
\multicolumn{13}{c}{\vspace*{-2mm}} \\
17 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{1}\hspace*{-.5mm}D_{2}~(68.8\%)          $               & $7.46032$ & $7.410_{(33)}$\tablefootmark{\dag} & $7.29060$ &
                      & $\rm {}^{1}\hspace*{-.5mm}D_{2}~(69.7\%)          $               & $8.03277$ & $7.970_{(34)}$\tablefootmark{\dag} & $7.81976$ & $7.9965 $ & $9.00447$ \\
\hline
\end{tabular}
\tablefoot {\tablefoottext{a}{present work: 2894-level MCBP results;}
    \tablefoottext{b}{critically compiled experimental data of \cite{Shirai:2000};}
    \tablefoottext{c}{MCHF results of \cite{Irimia:2003};}
    \tablefoottext{\dag}{extrapolated along the isoelectronic sequence;}
    \tablefoottext{\bigstar}{dominant excitation threshold - see Table~\ref{Tab:tar-rad};}
    \tablefoottext{d}{single-configuration TDCHF results\ of \cite{Ghosh:1997};}
    \tablefoottext{e}{6164-level FAC results\ of \cite{Aggarwal:2008};}
    \tablefoottext{f}{restricted CIV3 results\ of \cite{Verma:2007}.}}\vspace*{1.6mm}
\end{table}