\begin{table}%t1
\caption{Stellar and planetary parameters for different cases of star-planet magnetic interaction.\label{table_data}}
%\centerline
 {\begin{tabular}{cccccccc}
\hline \hline
Star & Sp. type & $P_{\rm rot}$ & $R$ & $A_{0}$  & $P_{\rm orb} $ & $u_{\rm A}/u_{\rm orb}$ & Ref.$^{a}$\\
 & & ($d$) & ($R_{\odot}$) & (AU) & ($d$) & \\
\hline
HD~179949      & F8V & $ \sim$$ 7$ & 1.25 &  0.045 & 3.09 & 14.6 & S08\\
$\upsilon$ And & F7V & $\sim $$12$ & 1.25 & 0.059 & 4.62 & 16.7 & S08  \\
$\tau$ Boo     & F7IV & 3.2 & 1.62 & 0.046 & 3.31 & 15.3 & S08, D08 \\
HD~189733      & K1V & 11.7 & 0.80 & 0.031 & 2.22 & 15.2 & S08 \\
HD~192263      & K2V & $\approx$$ 24$ & 0.78 &  0.15  & 24.35 & 34.6 & S03 \\ 
\hline
\end{tabular}}
\par
\smallskip
$^{a}$ References: S08: Shkolnik et~al. (2008); D08: Donati et~al. (2008); S03: Santos et~al. (2003).
\end{table}