\begin{table}%t5
\caption{\label{gas-flux1}The gas component parameters for the ring and the ``in'' region of 
the Cartwheel, computed from the summed EPIC-pn datasets, plus relative
densities, volumes, and masses of gas.}
\par
\small%\centering
\par
\begin{tabular}{c|ccc|ccccc}
  \hline\hline
   & \multicolumn{3}{|c|}{{ \emph{Gas}}} & {$n_{\rm H}$} & {$\chi^2$ (d.o.f.)}  & {\emph{n}} & {\emph{V}} & {\emph{M}} \\
 \hline
 & {\emph{kT}} & {\emph{pn Count rate }} & {\emph{Flux}}  & & &&& \\
 & & {(0.3--2 keV)} & {(0.5--2 keV)} & & & {[cm$^{-3}$]} & {[cm$^{3}$]}  & {[$M_{\odot}$]} \\
 & & {$\times 10^{-3}$} & {$\times 10^{-14}$ erg/cm$^{2}$/s} &  {$\times 10^{21}$ cm$^{-2}$} & &&&\\
 \hline
 {\emph{Ring}} & {0.20 [0.16--0.22]} & {$10.09 \pm 0.43$} &   {$1.18$} & {$0.23$} &   {$0.73$(24)}  & {2.4$\times 10^{-3}$} &  {2.03$\times 10^{68}$} &  {4.7$\times 10^{8}$} \\
 {\emph{``In''}} & {0.16 [0.12--0.21]} & {$7.02 \pm 0.37$} &   {$1.03$} & {$2.9 \pm 0.9$} &   {$0.99$ (26)}  & {2.2$\times 10^{-3}$} & {1.50$\times 10^{68}$} &  {2.8$\times 10^{8}$}\\
 \hline
 \end{tabular}
\end{table}