\begin{table}%T2
\caption{Numerical estimate of $\langle f_{i(k)}\rangle $ in the 5
AU region, for a swarm of grains produced in the whole 1--10 AU
region, as a function of $\beta_k$ (see text for details). Note that
for low $\beta$, $e_{k}$ might become lower than the average
eccentricity for the parent bodies in the disc (see Sect.~2.1). In
such a case, the radiation pressure effect is neglected for all
$e_{k}<\langle e_{0}\rangle $ and the values of $\langle
f_{i(k)}\rangle $ rescaled so that $\langle f_{i(k)}\rangle =1$ for
$e_{k}=\langle e_{0}\rangle $.  }
\label{tabf}
%\centering
\par
\begin{tabular}{ccc}
\hline\hline
 \multicolumn{1}{c}{$\beta_k$} & \multicolumn{1}{c}{$e_{k}$} &
\multicolumn{1}{c}{$\langle f_{i(k)}\rangle $}\\
\hline
0.49 & 0.96 & 0.038\\
0.39 & 0.63 & 0.344\\
0.31 & 0.45 & 0.521\\
0.24 & 0.32 & 0.665\\
0.19 & 0.24 & 0.753\\
0.15 & 0.18 & 0.812\\
0.12 & 0.14 & 0.849\\
0.10 & 0.11 & 0.887\\
0.08 & 0.09 & 0.930\\
\hline
\end{tabular}
%%\tablecomments{bfsdfsfsfdss}
\end{table}