\begin{table}%t4
\par
\caption{\label{res-v}Best fit parameter value and 1$\sigma$ errors constraints
on~$\frac{\delta v} {v_0}$.}
%\centering
\par
\begin{tabular}{lcc}
\hline \hline \noalign{\smallskip}
{\bf $\kappa$} & $\left(\frac{\delta v} {v_0} \pm
\sigma\right) \times 10^2$ & $ \frac{\chi^2_{\min}}{N-1}$ \\ 
\hline
{\bf $-3.65$} & $3.85 \pm 0.45 $ & $3.99 $ \\ 
{\bf $-10$}& $-1.89 \pm 0.30$ & $ 4.86$ \\ 
{\bf $3$} & $1.34 \pm 0.14 $ & $1.02 $ \\ 
\hline
\end{tabular}
\end{table}