\begin{table}%t3
\caption{\label{tab_int}a) {\it Chandra} LETG observation (Liang \& Zhao \cite{LZ08b}) for      Procyon along with predictions (for the line emissivity~$\epsilon$ and intensity~$I$) at $T_\rme=10^{6.1}$~K and $n_\rme=1.6$~$\times$ $10^9$~cm$^{-3}$. For completeness, an observation for a solar active region is given in the column  labelled ABB85 (Acton et~al. \cite{ABB85}). The ``$-$''~tag in the $\lambda$-columns denotes those wavelengths corrected by experimental energies.}
\par
\small%\centerline
 {
\begin{tabular}{cccrccrcccclc}
\hline\hline
%&&&&&&&&&&&& \\[-8pt]
${\rm \lambda_{obs}}$ & \multicolumn{2}{c}{\rm Flux} &
\multicolumn{1}{c}{$\lambda^a$} & ${\rm \epsilon}^a$ & $I_{\rm
Procyon}^{a}$ & \multicolumn{1}{c}{$\lambda^b$} & ${\rm \epsilon}^b$ &
$I_{\rm Procyon}^{b}$ & \multicolumn{4}{c}{\rm Transition}  \\
\cline{10-13}
\AA  & ${\rm Procyon^{\star}}$ & ${\rm
ABB85^{\bigtriangleup}}$  &\multicolumn{1}{c}{\AA} &${\rm
phot.~cm^3~s^{-1}}$ & & \multicolumn{1}{c}{\AA} &  ${\rm
phot.~cm^3~s^{-1}}$ &  & \multicolumn{2}{c}{\rm Upper}  &
\multicolumn{2}{c}{\rm Low} \\ 
\hline
%&&&&&&&&&&&& \\[-8pt]
47.42   &   $0.55(0.06){^c}$& ... & $-47.489$&$5.476(-12){^d}$& 0.16 &  $-47.489$ & $4.098(-12)$ & 0.12  & ${\rm  2s 2p 3p}$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
        &               & ... & 47.545       &   $6.058(-12)$     & 0.22 &  $-47.545$ & $4.831(-12)$ & 0.14  & ${\rm  2s 2p 3p}$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
50.334  &   0.44(0.08)  & 195 & $-50.305$      &   $1.680(-12)$     & 0.05 &  $-50.305$ & $4.055(-12)$ & 0.04  & ${\rm  2s 2p 3d}$ & ${\rm ^4D_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{3/2}}$\\
        &               &     &  50.316      &   $1.259(-12)$     & 0.04 &  $-50.316$ & $1.824(-12)$ & 0.06  & ${\rm  2s 2p 3d}$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
        &               &     & $-50.333$      &   $1.021(-12)$     & 0.03 &  $-50.333$ & $1.477(-12)$ & 0.04  & ${\rm  2s 2p 3d}$ & ${\rm ^4D_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
        50.524  &   1.38(0.09)  & 12  & $-50.524$      &   $4.403(-11)$     & 1.26 &  $-50.524$ & $3.902(-11)$ & 1.14  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
50.672  &   1.04(0.08)  & 74  & $-50.691$      &   $4.979(-11)$     & 1.40 &  $-50.691$ & $4.734(-11)$ & 1.37  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
        &               &     & $-50.703$      &   $8.778(-12)$     & 0.25 &  $-50.703$ & $7.769(-12)$ & 0.23  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
50.828  &   0.15(0.08)  & ... &  51.047      &   $1.224(-12)$     & 0.04 &   50.829 & $1.812(-12)$ & 0.06  & ${\rm  2s 2p 3d}$ & ${\rm ^4F_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
        &               &     &  51.047      &   $3.142(-13)$     & 0.01 &   50.830 & $4.352(-13)$ & 0.01  & ${\rm  2s 2p 3d}$ & ${\rm ^4F_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{3/2}}$\\
52.453  &   0.29(0.07)  & 15  & $-52.485$      &   $8.715(-12)$     & 0.25 &  $-52.485$ & $7.279(-12)$ & 0.21  & ${\rm  2s 2p 3d}$ & ${\rm ^2F_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2}}$\\
52.594  &   0.30(0.07)  & 40  & $-52.611$      &   $1.001(-11)$     & 0.29 &  $-52.611$ & $7.926(-12)$ & 0.26  & ${\rm  2s 2p 3d}$ & ${\rm ^2F_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\
54.533  &   0.62(0.12)  & $<$10 & $-54.521$      &   $1.564(-12)$     & 0.04 &  $-54.522$ & $1.241(-12)$ & 0.03  & ${\rm  2s 2p 3s}$ & ${\rm ^4P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{1/2}}$\\
        &               &     & $-54.522$      &   $2.680(-13)$     & 0.01 &  $-54.522$ & $1.302(-12)$ & 0.04  & ${\rm  2s 2p 3d}$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2S_{1/2}}$\\
        &               &     & $-54.598$      &   $4.731(-12)$     & 0.14 &  $-54.599$ & $3.947(-12)$ & 0.12  & ${\rm  2s 2p 3d}$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2S_{1/2}}$\\
54.895  &   0.52(0.12)  & $<$10 &  55.238      &   $9.561(-13)$     & 0.03 &   54.955 & $3.892(-12)$ & 0.11  & ${\rm  2s^2 3s }$ & ${\rm ^2S_{1/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
55.078  &   0.67(0.07)  & 17  &  55.453      &   $1.945(-12)$     & 0.06 &   55.167 & $8.218(-12)$ & 0.22  &$ {\rm  2s^2 3s }$ & ${\rm ^2S_{1/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
57.196  &   0.25(0.07)  & 25  & $-57.209$      &   $1.427(-11)$     & 0.40 &  $-57.209$ & $1.386(-11)$ & 0.43  & ${\rm  2s 2p 3s}$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2}}$\\
57.309  &   0.35(0.08)  & 17  & $-57.365$      &   $1.536(-11)$     & 0.43 &  $-57.365$ & $1.459(-11)$ & 0.40  & ${\rm  2s 2p 3s}$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\
61.971  &   1.11(0.14)  & 32  &  62.282      &   $1.223(-11)$     & 0.32 &   61.925 & $1.515(-11)$ & 0.46  & ${\rm  2s^2 3p }$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2,3/2}}$\\
        &               &     &  62.358      &   $8.668(-12)$     & 0.24 &   61.992 & $1.106(-11)$ & 0.31  & ${\rm  2s^2 3p }$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\[2pt]
\hline
\end{tabular}}
\medskip
$\star$ Units = $10^{-4}$ photons~cm$^{-2}$~s$^{-1}$;
$\bigtriangleup$ units = photons~cm$^{-2}$~s$^{-1}$~arcsec$^{-1}$;
$^{a}$~obtained using the $R$-matrix data of Keenan et~al. (\cite{KOT00}) for $n=2$ and the DW~data of Zhang \& Sampson (\cite{ZS94}) for $n=3$;
$^{b}$~obtained using the present ICFT $R$-matrix excitation data;
$^{c}$~($m$) denotes $\pm$$m$;
$^{d}$~($n$) denotes $\times10^n$.
\setcounter{table}{2}
\caption{\label{tab_int_b}b) Line intensity ratios relative to that of 50.524~\AA\  in the soft X-ray wavelength range. The caption and footnotes are the same as in Table~\ref{tab_int}a.}
\par
%\centering
\small
\begin{tabular}{cccrcrccclc} 
\hline\hline
%&&&&&&&&&& \\[-8pt]
${\rm \lambda_{obs}}$ & \multicolumn{2}{c}{\rm Ratio} &
\multicolumn{1}{c}{$\lambda^a$} & $I/I_{\rm ref}^{a}$  &
\multicolumn{1}{c}{$\lambda^b$} & $I/I_{\rm ref}^{b}$ &
\multicolumn{4}{c}{\rm Transition}  \\
\cline{8-11} ${\mbox \AA}$  & ${\rm Procyon^{\star}}$ & ${\rm
ABB85^{\bigtriangleup}}$  &\multicolumn{1}{c}{$\mbox \AA$} &  &
\multicolumn{1}{c}{$\mbox \AA$} &     &
\multicolumn{2}{c}{\rm Upper}  & \multicolumn{2}{c}{\rm Low} \\
\hline
%&&&&&&&&&& \\[-8pt]
47.42   &   $0.40(0.05){^c}$  & ... & $-47.489$&   0.12 &   $-47.489$ & 0.11  & ${\rm  2s 2p 3p}$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
        &               & ...   & 47.545       &   0.14 &   $-47.545$ & 0.12  & ${\rm  2s 2p 3p}$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
50.334  &   0.32(0.06)  & 16.25 & $-50.305$      &   0.04 &   $-50.305$ & 0.10  & ${\rm  2s 2p 3d}$ & ${\rm ^4D_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{3/2}}$\\
        &               &       &  50.316      &   0.03 &   $-50.316$ & 0.05  & ${\rm  2s 2p 3d}$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
        &               &       & $-50.333$      &   0.02 &   $-50.333$ & 0.04  & ${\rm  2s 2p 3d}$ & ${\rm ^4D_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
50.524  &   1.00(0.09)  & 1.00  & $-50.524$      &   1.00 &   $-50.524$ & 1.00  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
50.672  &   0.75(0.08)  & 6.17  & $-50.691$      &   1.13 &   $-50.691$ & 1.21  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{5/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
        &               &       & $-50.703$      &   0.20 &   $-50.703$ & 0.20  & ${\rm  2s^2 3d }$ & ${\rm ^2D_{3/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
50.828  &   0.11(0.06)  & ...   &  51.047      &   0.03 &    50.829 & 0.05  & ${\rm  2s 2p 3d}$ & ${\rm ^4F_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{5/2}}$\\
        &               &       &  51.047      &   0.01 &    50.830 & 0.01  & ${\rm  2s 2p 3d}$ & ${\rm ^4F_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{3/2}}$\\
52.453  &   0.21(0.05)  & 1.25  & $-52.485$      &   0.20 &   $-52.485$ & 0.19  & ${\rm  2s 2p 3d}$ & ${\rm ^2F_{7/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2}}$\\
52.594  &   0.22(0.05)  & 3.33  & $-52.611$      &   0.23 &   $-52.611$ & 0.20  & ${\rm  2s 2p 3d}$ & ${\rm ^2F_{5/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\
54.533  &   0.45(0.09)  & $<$1.00 & $-54.521$      &   0.04 &   $-54.522$ & 0.03  & ${\rm  2s 2p 3s}$ & ${\rm ^4P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^4P_{1/2}}$\\
        &               &       & $-54.522$      &   0.01 &   $-54.522$ & 0.03  & ${\rm  2s 2p 3d}$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2S_{1/2}}$\\
        &               &       & $-54.598$      &   0.11 &   $-54.599$ & 0.10  & ${\rm  2s 2p 3d}$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2S_{1/2}}$\\
54.895  &   0.38(0.09)  & $<$1.00 &  55.238      &   0.02 &    54.955 & 0.10  & ${\rm  2s^2 3s }$ & ${\rm ^2S_{1/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{1/2}}$\\
55.078  &   0.49(0.06)  & 1.42  &  55.453      &   0.04 &    55.167 & 0.21  & ${\rm  2s^2 3s }$ & ${\rm ^2S_{1/2}}$  &   ${\rm \to ~2s^2 2p}$ & ${\rm ^2P_{3/2}}$\\
57.196  &   0.18(0.05)  & 2.08  & $-57.209$      &   0.32 &   $-57.209$ & 0.36  & ${\rm  2s 2p 3s}$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2}}$\\
57.309  &   0.25(0.06)  & 1.42  & $-57.365$      &   0.35 &   $-57.365$ & 0.37  & ${\rm  2s 2p 3s}$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\
61.971  &   0.80(0.11)  & 2.67  &  62.282      &   0.28 &    61.925 & 0.39  & ${\rm  2s^2 3p }$ & ${\rm ^2P_{3/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{5/2,3/2}}$\\
        &               &       &  62.358      &   0.20 &    61.992 & 0.28  & ${\rm  2s^2 3p }$ & ${\rm ^2P_{1/2}}$  &   ${\rm \to ~2s 2p^2}$ & ${\rm ^2D_{3/2}}$\\[2pt]
\hline
\end{tabular}
\end{table}