\begin{table}%t3!!
\caption {\label{tableA}Coefficients $\ovl{a}_{nm}$ of an expansion in spherical harmonics fitted to $\ovl{\chi}(r=25~r_{\rm c})$ 
of Eq.~(\ref{chi}).}
%\centering
\par
\begin{tabular}{ c c c c c}
\hline\hline
$ $     &$n=0$& $n=1$ & $n=2$ & $n=3$\\
\hline 
$m=0$  & $0.410$  & $ 0.311 $  & $ 0.115$ & $ 0.0183$\\
$m=1$  & $-$     & $ 0.0370$  & $ 0.0446$ & $0.0162$\\
$m=2$  & $-$     & $-$       & $ -0.0385$ & $-0.0150$\\
$m=3$  & $-$     & $-$       & $-$       & $-0.00411$\\
\hline
\end{tabular}
\tablefoot{The unit of the coefficients is $r_{\rm c}{\rm h}^{-2}$ (mean nucleus radius per hour squared).}	
\end{table}