\begin{table}%T3
 \caption{\label{grb050406:tab_lcvfits}Light curve fit results$^{{a}}$.}
 %\begin{center}
{
 \begin{tabular}{lllll}
 \hline
 \hline
 Model parameters &  Simple power law     		&  Broken power law     		& Smoothly-joined power laws 		& Broken power law+Gaussian\\
 		  &  excluding flare      		&  excluding flare 			& excluding flare 		& full data set  \\
  \hline
 $\alpha_1$	& $\rm 1.41^{+0.22}_{-0.24}$		& $\rm 1.58^{+0.18}_{-0.16}$		& $\rm 1.73^{+0.40}_{-0.24}$ 	& $1.58\pm0.17$	\\
$t_{\rm b}$ (s)	& --					& $(4.19^{+6.17}_{-0.36})\times 10^{3}$	& $(3.61^{+1.36}_{-1.03})\times 10^{3}$	& $(4.36^{+6.23}_{-0.53})\times 10^{3}$\\
$\alpha_2$	& --					& $0.50\pm0.14$			        & $\rm 0.42_{-0.12}^{+0.11}$	& 
$\rm 0.50^{+0.13}_{-0.14}$\\
Gaussian centre (s)	& --					& --					& -- & $\rm 211.1^{+5.4}_{-4.4}$\\
Gaussian width	(s)	& --					& --					& -- & $\rm 17.9^{+12.3}_{-4.6}$\\
$\chi^2_{\rm red}$ & 4.32					& 1.20					& 1.29 & 1.58\\
d.o.f.		& 12					& 10					& 10 & 17\\
  \hline
  \end{tabular}}
  \parbox{16.5cm}{
    $^{{a}}$    We follow the notation $F(t) \propto t^{-\alpha}$.}
    %\end{center}
\par
    \end{table}