\begin{table}%t7
\caption{Parameters of the ``6APEC model'', including estimates of the deprojected temperature profile from the {\it Chandra} \mbox{ACIS-I} data at the six annular bins in the NW~region, which excludes the SE~quadrant.}
\label{tab7}
%\centerline
 {\small \begin{tabular}{lllll}
\hline\hline \noalign{\smallskip}
Radius~[\arcsec] & $kT$~[keV] & $Z$~[solar]$^{a}$ & $K^{b}$ & $\chi^2/{\rm d.o.f.}$\\
\hline\noalign{\smallskip}
0--4  &5.74 (5.01--6.64) & 0.47 (0.39--0.55)& 0.97 (0.92--$1.02)\times10^{-3}$ & 364.2/290 \\
4--8  &8.06 (7.10--9.20) &   & $1.83 (1.77$--$1.89)~\times~10^{-3}$ & \\
8--24  &14.12 (12.61--16.08) &   & $4.02 (3.93$--$4.10)\times10^{-3}$ & \\
24--56   &17.49 (14.95--21.26) &  & $2.86 (2.79$--$2.95)\times10^{-3}$ & \\
56--120  &18.47 (14.49--23.18) &  & $2.29 (2.22$--$2.37)\times10^{-3}$ & \\
120--300 &8.27 (6.15--13.16)   &   & $0.91 (0.86 - 0.97)\times10^{-3}$ & \\
\hline
\end{tabular}}
\smallskip
$^a$ The metal abundance is assumed to be common for all radial bins; 
 $^{b}$ $K$ represents the normalization factor for
  each spherical shell, i.e., the position angle of
  $0^{\circ}$--$360^{\circ}$, of the fitting.
\end{table}