\begin{table}%t1
%\centering
\par
\caption{Compression ratio, $r_{{\rm tot}}$, and downstream
magnetic field, $B_{s}$, at the forward shock obtained for
different injection, $\eta_{{\rm inj}}$. The magnetic field
compression ratio is given by $r_{{B}} \equiv B_{s}/B_{0} =
\sqrt{1/3+2 \: r_{{\rm tot}}^{2}/3}$ and $B_{0}= 10 \:
{\mu}{\rm G}$ here.} \label{Tab-rtot_etainj}
\begin{tabular}{lcccc}
\hline \hline\\[-3mm]
 $\eta_{{\rm inj}}$ &  $10^{-3}$ & $2 \times
10^{-4}$ & $10^{-4}$ & $10^{-5}$
\\ \hline
$r_{{\rm tot}}$  & 8.5 & 7.5 & 5.9 & 4.1 \\
$B_{s}$ (${\mu}{\rm G}$) & 69 & 61 & 49 & 34 \\ \hline
\end{tabular}
\end{table}