\begin{table}%t4
%\centering
\par
\caption{\label{table4}Stellar wind and planetary plasma parameters.}
\small \begin{tabular}{lccccccc}
\hline\hline\noalign{\smallskip}
$d$ [AU] & $n_{\rm sw}$ [cm$^{-3}$] & $v_{\rm sw}$ [km~s$^{-1}$] & $n_{\rm CME}$ [cm$^{-3}$] & $v_{\rm CME}^{av}$ [km~s$^{-1}$] & $v_{\rm CME}^{fast}$ [km~s$^{-1}$] & $n_{\rm H^+}$
[cm$^{-3}$] & $T_{\rm i} + T{\rm e}$ [K] \\
\hline  \noalign{\smallskip}
0.1   & 794 & 283  & 1667 & 474  & 759  & $6 \times 10^{6}$ & $2.0\times 10^{4}$ \\
0.045 & 9625 & 226  & $2.95 \times 10^4$ & 378 & 605 & $1\times 10^{7}$ & $3.0\times 10^{4}$ \\
0.015  & $4.48 \times 10^{5}$ & 68 & $1.54 \times 10^{6}$ & 113 & 181 & $4\times 10^{8}$
& $5.0\times 10^{4}$ \\
\hline
\end{tabular}
\end{table}