\begin{table}%t1
\caption{\label{table:fit}Fit of the EPIC flare spectra, in the 2--10~keV energy range, 
with absorbed power-law (pow),  bremsstrahlung (brems), 
 black-body~(bb) or mekal models, taking into account dust scattering. 
 Frozen parameters are given between brackets.
$^a$~${\cal N}_{\rm H}$ is units of~10$^{23}$~cm$^{-2}$.
 $^b$~$Z$ is the metal abundance relative to the ISM one.  
$^c$~The fluxes are unabsorbed and expressed in units 
 of~10$^{-11}$ erg~cm$^{-2}$~s$^{-1}$.
}
%\centering
\par
\begin{tabular}{ccc@{\ }c@{\ }cc@{\ }}
\hline
\hline
\noalign {\smallskip}
Model   & ${\cal N}^{\it a}_{\rm H}$  & $\Gamma/kT$  & $Z^{\it b}$        &$F^{\it c}_{2-10 {\rm keV}}$   & $\chi^{2}$/d.o.f. \\
\noalign {\smallskip}
\hline
\noalign {\smallskip}
pow          &   $2.0\pm0.3$     &  $2.5\pm0.3$  & [1.0]   & $\rm 2.4^{+2.0}_{-1.0}$ &     102.4/123  \\
\noalign {\smallskip}
pow          &  $1.1\pm0.1$     &   [1.3]     & [1.0]   &  1.6\hspace{0.4mm}$\pm$\hspace{0.4mm}0.2           &    149.0/124 \\
\noalign {\smallskip}
brems       &   $1.7\pm0.2$      &  $\rm 6.1^{+2.3}_{-1.3}$ &  [1.0] & $\rm 2.0^{+0.6}_{-0.4}$ & 104.3/123     \\
\noalign {\smallskip}
bb       &   $1.0\pm0.2$      &  $\rm 1.47^{+0.12}_{-0.06}$ &  [1.0] & $1.3\pm0.1$ & 113.6/123     \\
\hline
\noalign {\smallskip}
mekal       &   $1.7\pm0.2$       &  $\rm 5.7^{+2.3}_{-1.2}$ & $<$0.17 & $\rm 2.0^{+0.6}_{-0.5}$ &    103.8/122     \\
\noalign {\smallskip}
mekal       &   $\rm 1.1^{+0.2}_{-0.1}$ &  $\rm 27^{+30}_{-13}$ &  [1.0]  & $1.6\pm0.2$         &    147.9/123     \\
\noalign {\smallskip}
mekal       &   $1.0\pm0.1$       &  $\geq$48                    &    [2.0]       & $1.6\pm0.2$         &    159.7/123   \\
\hline
\end{tabular}
\end{table}