\begin{table}%t1
%\centering
\par
\caption{\label{tab:specres}Best-fit parameters for the spectra extracted in region Y (black ellipse in  Fig.~\ref{fig:excess}) and region~N (i.e. the entire remnant minus region~Y).}
\vspace*{-2mm}
\par
\begin{tabular}{lccc} 
\hline\hline\noalign{\smallskip}
Parameter & Region~Y & Region N\\
\hline\noalign{\smallskip}
$kT_{2}$ (keV) & $\rm 1.73^{+0.03}_{-0.02}$ & $1.53\pm0.02$\\[1mm]
$EM^{*}_{2}$($10^{20}$~cm$^{-5}$) & $\rm 2.29^{+0.03}_{-0.6}$  &  $\rm 0.43^{+0.01}_{-0.01}$ \\[1mm]
${\rm Fe/Fe}_\odot$$^{(**)}$  & $\rm 5.8_{-0.2}^{+0.2}$ &      $4.7\pm 0.3$\\[1mm]    
${\rm Ni/Ni}_\odot$$^{(**)}$ & $\rm 9.7_{-0.7}^{+1.5}$ &      $9\pm1$\\           
reduced $\chi^{2}$$/$d.~o.~f. &    $1.74/722$ & $1.57/722$\\[0.6mm]
\hline\noalign{\smallskip}
reduced $\chi^{2}/$d.~o.~f.($8.3{-}12$ keV)$^{(***)}$ & $6.1/38$   &   $2.2/38$\\ 
\hline
\end{tabular}
\tablefoot{The best-fit model and the fitting procedure are described in Sect.~\ref{The Data}. All errors are at the 90\% confidence level.\\
 \tablefoottext{*}{Emission measure per unit area.} \tablefoottext{**}{Abundances derived in CIE, Discrepancies with O09 are due to the CIE model adopted here.} \tablefoottext{***}{Contribution to the $\chi^2$ of the $8.3-12$ keV spectral bins.}}
\end{table}