\begin{table}%t4
\caption{\label{Tab:V:Cr:tar-str}The lowest $\Delta n_{{\rm c}} = 0$ core excitation thresholds (in Rydbergs) for \ion{V}{vi} and \ion{Cr}{vii}.}
%\centering
\par
\begin{tabular}{r l l l r r c l l r r}  % 11 columns
\hline
\hline\noalign{\smallskip}
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
   &         & \multicolumn{4}{c}{${\rm V}^{5+}$} &   & \multicolumn{4}{c}{${\rm Cr}^{6+}$} \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
%\cline{3-6}\cline{8-11}
%\multicolumn{11}{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} \\
\hline
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
%K   Configuration               Level                                                   Present      NIST           MCHF
 1 & $\rm 3s^{2}3p^{6}  $ & $\rm {}^{1}\hspace*{-.5mm}S_{0}~(96.4\%)$                       & $0.000000$ & $0.000000$ & $0.000000$ &
                      & $\rm {}^{1}\hspace*{-.5mm}S_{0}~(96.6\%)$                       & $0.000000$ & $0.000000$ & $0.000000$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
 2 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{0}^{{\rm o}}~(97.0\%)$             & $2.739060$ & $2.808068$ & $2.806866$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{0}^{{\rm o}}~(97.1\%)$             & $3.059906$ & $3.109055$ & $3.110232$ \\
 3 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.9\%)$             & $2.748293$ & $2.819413$ & $2.818090$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{1}^{{\rm o}}~(96.9\%)$             & $3.072680$ & $3.123582$ & $3.124881$ \\
 4 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}P_{2}^{{\rm o}}~(96.7\%)$             & $2.767020$ & $2.842952$ & $2.841350$ &
                      & $\rm {}^{3}\hspace*{-.5mm}P_{2}^{{\rm o}}~(96.6\%)$             & $3.098672$ & $3.154233$ & $3.155270$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
 5 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{4}^{{\rm o}}~(97.3\%)$             & $2.896923$ & $2.941329$ & $2.944497$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{4}^{{\rm o}}~(97.4\%)$             & $3.234927$ & $3.258178$ & $3.264649$ \\
 6 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{3}^{{\rm o}}~(96.2\%)$             & $2.906694$ & $2.961235$ & $2.963277$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{3}^{{\rm o}}~(95.7\%)$             & $3.247762$ & $3.282128$ & $3.287197$ \\
 7 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}F_{2}^{{\rm o}}~(96.6\%)$             & $2.917192$ & $2.981802$ & $2.982698$ &
                      & $\rm {}^{3}\hspace*{-.5mm}F_{2}^{{\rm o}}~(96.2\%)$             & $3.262960$ & $3.308454$ & $3.312214$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
 8 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}D_{2}^{{\rm o}}~(71.5\%)$             & $3.110770$ & $3.145142$ & $3.152963$ &
                      & $\rm {}^{1}\hspace*{-.5mm}D_{2}^{{\rm o}}~(67.4\%)$             & $3.470531$ & $3.487258$ & $3.497713$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
 9 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{3}^{{\rm o}}~(78.2\%)$             & $3.119456$ & $3.148578$ & $3.156780$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{3}^{{\rm o}}~(72.3\%)$             & $3.478260$ & $3.487760$ & $3.499169$ \\
10 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{1}^{{\rm o}}~(96.8\%)$             & $3.126389$ & $3.170297$ & $3.176499$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{1}^{{\rm o}}~(96.8\%)$             & $3.489568$ & $3.515926$ & $3.525054$ \\
11 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{2}^{{\rm o}}~(71.6\%)$             & $3.132258$ & $3.174174$ & $3.180891$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{2}^{{\rm o}}~(71.8\%)$             & $3.499112$ & $3.523110$ & $3.532855$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
12 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}F_{3}^{{\rm o}}~(77.6\%)$             & $3.145710$ & $3.195308$ & $3.203371$ &
                      & $\rm {}^{1}\hspace*{-.5mm}F_{3}^{{\rm o}}~(71.3\%)$             & $3.512852$ & $3.546890$ & $3.557753$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
13 & $\rm 3s^{2}3p^{5}3d$ & $\rm {}^{1}\hspace*{-.5mm}P_{1}^{{\rm o}}~(95.4\%)$\tablefootmark{\bigstar}  & $4.059132$ & $4.059108$ & $4.114305$ &
                      & $\rm {}^{1}\hspace*{-.5mm}P_{1}^{{\rm o}}~(95.6\%)$\tablefootmark{\bigstar}  & $4.492846$ & $4.492869$ & $4.553079$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
14 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{1}~(69.1\%)$                       & $5.013754$ & $5.007759$ & $5.122273$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{1}~(71.9\%)$                       & $5.547059$ & $5.546697$ & $5.667028$ \\
15 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{2}~(69.1\%)$                       & $5.017989$ & $5.010726$ & $5.124985$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{2}~(71.8\%)$                       & $5.552838$ & $5.550917$ & $5.670942$ \\
16 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{3}\hspace*{-.5mm}D_{3}~(69.2\%)$                       & $5.024692$ & $5.015474$ & $5.129131$ &
                      & $\rm {}^{3}\hspace*{-.5mm}D_{3}~(72.0\%)$                       & $5.562141$ & $5.557707$ & $5.676969$ \\
%\multicolumn{11}{c}{\vspace*{-2mm}} \\
17 & $\rm 3s^{ }3p^{6}3d$ & $\rm {}^{1}\hspace*{-.5mm}D_{2}~(63.6\%)$                       & $5.191350$ & $5.161717$ & $5.318685$ &
                      & $\rm {}^{1}\hspace*{-.5mm}D_{2}~(66.4\%)$                       & $5.742414$ & $5.721178$ & $5.883764$ \\
\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{\bigstar}{dominant excitation threshold - see Table~\ref{Tab:tar-rad}.}
}\vspace*{2.4mm}
\end{table}