\begin{table}%t6
\caption{Oscillator strengths for transitions in Ra II.} \label{table6}
%\centerline
{
\small\begin{tabular}{lrrcrcr}
\hline \hline\noalign{\smallskip}
$\lambda (\AA)^a$ & {\rm Int}$^a$ & $E_{\rm l}$ ({\rm cm}$^{-1}$) & $J_{\rm l}$ & $E_{\rm u}$ ({\rm cm}$^{-1}$) & $J_{\rm u}$  & $\log~gf$ \\
\noalign{\smallskip} \hline \noalign{\smallskip}
2708.96 &  100 & 12~084.38~$(e)$ &3/2& 48~987.98~$(o)$ &5/2&  0.24  \\
2813.76 &  150 & 13~743.11~$(e)$ &5/2& 49~272.31~$(o)$ &7/2&  0.38  \\
3649.55 &  500 & 21~351.20~$(o)$ &1/2& 48~744.04~$(e)$ &3/2&  0.30  \\
3814.42 & 1000 &     0.00~$(e)$ &1/2& 26~208.86~$(o)$ &3/2&  0.19  \\
4340.64 &  500 & 26~208.86~$(o)$ &3/2& 49~240.48~$(e)$ &5/2&  0.48  \\
4436.27 &  100 & 26~208.86~$(o)$ &3/2& 48~744.04~$(e)$ &3/2& --0.48  \\
4533.11 &  150 & 21~351.20~$(o)$ &1/2& 43~405.01~$(e)$ &1/2& --0.23  \\
4682.28 &  500 &     0.00~$(e)$ &1/2& 21~351.20~$(o)$ &1/2& --0.20  \\
5813.63 &  100 & 26~208.86~$(o)$ &3/2& 43~405.01~$(e)$ &1/2& --0.04  \\
8019.70 &  250 & 13~743.11~$(e)$ &5/2& 26~208.86~$(o)$ &3/2& --0.12  \\
\hline
\end{tabular}}
\smallskip
 $^a$  From Sansonetti \& Martin (2005)\\
 (see also {\tt http://physics.nist.gov/PhysRevData/Handbook/Tables/radiumtable2.htm)}
\end{table}