\begin{table}%t3
\caption{\label{tab3}\textit{XMM-Newton} EPIC best-fit parameters.}
\par
\small%\centerline
 {
\begin{tabular}{l c }      
\hline\hline       
%& \\[-8pt]
$\Gamma$             &   $\rm 1.69^{+0.18}_{-0.10}$  \\
$R$                    &   $\rm 2.7^{+0.81}_{-0.60}$      \\
$N_{\rm G}$            & ($3.06\times10^{20}$) cm$^{-2}$ \\
$N_{\rm H}$            & $(7.14^{+1.75}_{-1.21}) \times10^{23}$ cm$^{-2}$ \\
$n$                    & $(1.83^{+0.47}_{-0.31}) \times10^{-3}$ \\
$n_{\rm unobscured}$     & $(8.1^{+4.08}_{-7.28}) \times10^{-6}$\\ 
$E_{\rm Fe~~}$   (keV)   & $\rm 6.40^{+0.13}_{-0.08}$  \\ 
$F_{\rm Fe~~}$           & $(3.65^{+3.93}_{-2.04})\times10^{-5}$\\
$EW$ (eV)              & $\rm 206^{+199}_{-115}$ \\ 
%& \\[-8pt]
\hline
\bf{$\chi^{2}$(d.o.f.)}  &\bf{37.5(37)}\\
\hline
\multicolumn{2}{l}{Unabsorbed luminosity and absorbed flux} \\
$L_{2-10~{\rm keV}}$ (erg~s$^{-1}$)      &     $7.53 \times10^{43}$ \\
$\rm Flux_{2-10~keV}$ (erg~s$^{-1}$ cm$^{-2}$)&  $2.64 \times 10^{-12}$ \\
\hline
\end{tabular}}
\medskip
Normalizations $n$ are expressed in cm$^{-2}$~s$^{-1}$~keV$^{-1}$; the normalization of the iron line is expressed in photons~cm$^{-2}$~s$^{-1}$.
\end{table}