\begin{table}%T
\caption{Parameters for planets at opposition (phase angle
  $\alpha=0^\circ$) with finite Rayleigh scattering layer (optical
  thickness $b_\tau$) and ground albedo $A_{\rm ground}$.
  The tabulated values are the geometric albedo
$A_{\rm g}$, the disk-integrated radial polarization $\langle
Q_{\rm r}/I\rangle$, the line-integrated radial polarization for a line
through the disk center, and the maximum radial polarization
$Q_{\rm r}(r)/I(r)|_{\rm max}$.}
\label{theorytab2}
%\centerline
{\small
\begin{tabular}{lllccc}
\hline\hline
$b_\tau$ &  $A_{\rm ground}$ \hspace{-0.1cm}
          & $A_{\rm g}$  & $\langle Q_{\rm r}/I\rangle$ 
                       & $\langle Q_{\rm r}/I\rangle_{\rm line}$ 
                            & $Q_{\rm r}/I|_{\rm max}$  \\
                               %  & $\langle Q/I \rangle_{90^\circ}$ \\
         &        & [\%] & [\%] & [\%] \\ % & [\%] \\
\hline
% \noalign{$b_\tau=5.0$}
% 0.80   & 0.711$^a$   &            &       &      \\ % & 36.3$^a$ \\
% 0.40   & 0.657$^a$   &            &       &      \\ % & 39.2$^a$ \\
% 0.00   & 0.638$^a$   &            &       &      \\ % & 40.4$^a$ \\
1.0  & 0.80   & 0.651       & {\bf 2.75} & 1.63  & 8.3  \\ % & 35.6$^a$ \\
% 0.40   & 0.595$^a$   &            &       &      \\ % & 49.3$^a$ \\
1.0  & 0.25   & 0.428       & {\bf 4.33} & 2.81  & 9.4  \\ % &          \\
1.0  & 0.00   & 0.362       & {\bf 5.15} & 3.51  & 9.9  \\ % & 65.6$^a$ \\
\noalign{\smallskip}
0.50 & 0.80   & 0.620       & {\bf 1.81} & 1.02  & 7.4  \\ % & 27.2$^a$ \\
% 0.40   & 0.405$^a$   &            &       &      \\ % & 43.5$^a$ \\       
0.50 & 0.25   & 0.336       & {\bf 3.43} & 2.15  & 8.7  \\ % &          \\
0.50 & 0.00   & 0.242       & {\bf 4.87} & 3.39  & 9.3  \\ % & 77.4$^a$ \\
\noalign{\smallskip}
0.25 & 0.80   & 0.590       & {\bf 0.95} & 0.51  & 6.1$^a$  \\
0.25 & 0.25   & 0.267       & {\bf 2.11} & 1.25  & 6.7    \\
0.25 & 0.00   & 0.142       & {\bf 4.01} & 2.80  & 7.5    \\
% \noalign{\smallskip}
% 0.80   &  0.581$^a$  &            &       &      & 15.5$^a$ \\
% 0.40   &  0.335$^a$  &            &       &      & 27.6$^a$ \\
% 0.00   &  0.118$^a$  &            &       &      & 88.0$^a$ \\
\noalign{\smallskip}
0.15 & 0.80   & 0.572       & {\bf 0.51} & 0.27  & 5.2$^a$  \\
0.15 & 0.25   & 0.232       & {\bf 1.28} & 0.72  & 5.4$^a$  \\
0.15 & 0.00   & 0.093       & {\bf 3.22} & 2.27  & 5.7      \\
\noalign{\smallskip}
0.10 & 0.80   & 0.561       & {\bf 0.29} & 0.15  & 4.2$^a$  \\
0.10 & 0.25   & 0.212       & {\bf 0.77} & 0.42  & 4.4$^a$  \\
0.10 & 0.00   & 0.065       & {\bf 2.53} & 1.79  & 4.5$^a$  \\
\noalign{\smallskip}
0.05 & 0.80   & 0.549       & {\bf 0.10} & 0.05  & 2.6$^a$  \\
0.05 & 0.25   & 0.191       & {\bf 0.29} & 0.15  & 2.9$^a$  \\
0.05 & 0.00   & 0.034       & {\bf 1.62} & 1.15  & 3.0$^a$  \\
\noalign{\smallskip}
0.02 & 0.80   & 0.540       & {\bf 0.02} & 0.01  & 1.1$^a$  \\
0.02 & 0.25   & 0.176       & {\bf 0.05} & 0.02  & 1.4$^a$  \\
0.02 & 0.00   & 0.014       & {\bf 0.73} & 0.05  & 1.6$^a$  \\
\hline
\end{tabular}}
\medskip
$^a$ Maximum value is reached at the extreme limb ($r=1$). 
\end{table}