\begin{table}%T5
\caption{Spectral indices of the respective sources.
 $S_\nu\propto\nu^\alpha$. $^a$ taken from Ulvestad \& Ho (\cite{Ulvestad01}).}
\label{radio-specind}
%\centering
\small
\begin{tabular}[c]{ccccc}
    \hline
    \hline
    Name     & $\alpha^{230}_{113}$ & $\alpha^{5}_{1.7}$
    & $\alpha^{5}_{1.6}$ & $\alpha^{5}_{1.7}$ \\
             & (PdBI) &  (MERLIN) & (EVN) & (VLBA)$^a$ \\
    \hline
    NGC~1961 & $-$0.4  & $-0.3\pm0.3$   & $-0.3\pm0.2$   & -- \\
    NGC~2782 & --       & $-0.6\pm0.3$   & $\leq$--1.0     & -- \\
        jet  &  --      & $-0.2\pm0.6$   & --              & -- \\
    NGC~3147 & $-$0.3  &  $0.14\pm0.03$ &  $0.39\pm0.06$ & $0.2\pm0.1$ \\
    NGC~3718 & $0.0\pm0.2$  &  $0.4\pm0.1$   &  $0.37\pm0.06$ & $-$ \\
    NGC~4579 & 0.1  &  $1.12\pm0.02$ &  $0.09\pm0.04$ & $0.2\pm0.1$ \\
    NGC~5953 & --     & $-1.2\pm0.5$   &   --            & -- \\
    NGC~7217 & --     &  $0.6\pm0.1$   & $0.8\pm0.2$    &  --  \\
    \hline
\end{tabular}
\end{table}