\begin{table}%t6
\caption{\label{specdif}Parameters of the spectral fits for the extended sources. 
Stated errors  correspond to the~90\%~confidence level. The global
metallicity was set to~$0.3~Z_{\odot}$ for all sources. Fluxes are 
given in the spectral range $0.4{-}10$~keV, and in units~10$^{-14}$~ergs~cm$^{-2}$~s$^{-1}$. Unabsorbed fluxes are corrected for the fitted~$N($H). 
The results correspond to a simultaneous fit of all EPIC~spectra, except 
for the NE~source, for which only a pn spectrum was available. Constrained 
fits are also listed below when the fitted $N($H) was outside the "allowed'' 
range (see Sect.~4.1). Note that solutions with $\chi^2>2$ were not included.}
%\centerline
{
\begin{tabular}{l c c c c c | c c c c c } 
\hline\hline
Source & \multicolumn{5}{c|}{Parameters of the $mekal$ model} & \multicolumn{5}{c}{Parameters of the absorbed power law}\\
 & $N($H) & $kT$ & $\chi^2_{\nu}$(d.o.f.) & $f_{\rm X}^{\rm abs}$ & $f_{\rm X}^{\rm unabs}$ & $N($H) & $\Gamma$ & $\chi^2_{\nu}$(d.o.f.) & $f_{\rm X}^{\rm abs}$ & $f_{\rm X}^{\rm unabs}$ \\
 & (10$^{22}$ cm$^{-2}$) & (keV) &  &  & &(10$^{22}$ cm$^{-2}$)&   & & &\\
\hline
N11L& $\rm 0.43_{0.40}^{0.46}$ & $\rm 0.15_{0.15}^{0.16}$ & 1.63 (162) & 23.1 & 459. &  & & & & \\
plume N of N11L& $\rm 0.68_{0.64}^{0.73}$ & $\rm 0.15_{0.14}^{0.18}$ & 1.29 (175) & 11.0 & 755. & $\rm 0.72_{0.57}^{0.92}$ & $\rm 7.38_{6.37}^{8.76}$ & 1.79 (175) & 11.2 & 1500.\\
LH9& $\rm 0.41_{0.37}^{0.45}$ & $\rm 0.18_{0.17}^{0.18}$ & 1.54 (419) & 45.9 & 663. && &  & \\
LH10& $\rm 0.05_{0.}^{0.17}$ & $\rm 0.59_{0.52}^{0.66}$ & 1.39 (35) & 4.56 & 5.56 &   &  &  & \\
NE& $\rm 0.36_{0.10}^{0.44}$ & $\rm 0.22_{0.19}^{0.29}$ & 1.05 (45) & 4.56 & 34.0 & &  &  &  & \\
NW& $\rm 0.26_{0.20}^{0.35}$ & $\rm 0.23_{0.20}^{0.25}$ & 1.36 (154) & 9.29 & 40.8 & & &  &  & \\
\hline
LH9$^1$& $\rm 0.20_{0.18}^{0.20}$ & $\rm 0.23_{0.22}^{0.23}$ & 1.74 (419) & 45.0 & 100. &  &  &  &  & \\
LH10$^2$& $\rm 0.10_{0.10}^{0.18}$ & $\rm 0.58_{0.51}^{0.63}$ & 1.41 (35) & 4.49 & 6.51 &  &  &  &  & \\
\hline
\end{tabular}}
\smallskip
$^1$ $N($H) constrained to the interval $0.06{-}0.2\times10^{22}$ cm$^{-2}$ (see Sect.~4.1).\\
$^2$ $N($H) constrained to the interval $0.1{-}0.8\times10^{22}$ cm$^{-2}$ (see Sect.~4.1).\\
\end{table}