\begin{table}%t7
  \caption{\label{table:6}Intensity of the X-ray background contributed by our sources in the various energy bands.}
\small%\centerline
 {
\begin{tabular}{c c c c c c}
\hline\hline                 
Energy band &  $S_{\rm min}$  &  $S_{\rm max}$  &  $I_{\rm CXRB}(S_{\rm min}\le S\le S_{\rm max})$ & $I_{\rm CXRB}$ & $f_{\rm CXRB}$\\
 (keV)   &  (${\rm cgs}$) &  (${\rm cgs}$) & (${\rm 10^{-12}~cgs~deg^{-2}}$) & (${\rm 10^{-12}~cgs~deg^{-2}}$) \\
 (1) & (2) & (3) & (4) & (5) & (6)\\
\hline                         
%&&&&&&&&& \\[-8pt]
0.5--1  & $9.9\times10^{-16}$ & $10^{-12}$ & 2.4 & 2.96   & 0.81    \\
       & $10^{-12}$ & & 0.32 &    & 0.11   \\
1--2    & $1.2\times10^{-15}$ & $10^{-12}$ & 2.5 & 4.50*  & 0.55    \\
       & $10^{-12}$ & & 0.12 &    & 0.03    \\
2--4.5  & $3.7\times10^{-15}$ & $10^{-12}$ & 3.3 & 7.80   & 0.42    \\
       & $10^{-12}$ & & 0.08 &    & 0.01    \\
4.5--10 & $14 \times10^{-15}$ & $10^{-12}$ & 2.8 & 12.4   & 0.22    \\
       & $10^{-12}$ & & 0.14 &    & 0.01    \\
0.5--2  & $1.4\times10^{-15}$ & $10^{-12}$  & 4.9 & 7.50* & 0.65    \\
       & $10^{-12}$ & & 0.48 &    & 0.06    \\
2--10   & $9.0\times10^{-15}$ & $10^{-12}$  & 8.0 & 20.2* & 0.39    \\
       & $10^{-12}$ & & 0.39 &    &  0.02   \\
\hline                                   
\end{tabular}}
\medskip
 (1) Energy band definition (in keV). (2) and (3)~Minimum and maximum flux used in the integration.
(4)~Intensity of the X-ray background contributed by our sources. Note that the quoted values include the contribution from both clusters of galaxies and stars.
(5)~Total X-ray background intensity. Errors are 1$\sigma$~uncertainty. The values indicated with an asterisk are from Moretti et~al. (\cite{Moretti03}). These values were used to estimate the CXRB~intensity in the various energy bands assuming a power-law model of $\Gamma$~= 1.4 (see Sect.~\ref{ixrb} for details). (6)~Fraction of X-ray background resolved by our sources.
\end{table}