\begin{table}%t2
\caption{\label{fit}Spectral results derived from the PN data.}
%\centering
\small
\begin{tabular}{lrrl}
\hline\hline
Par.  & 2-T & 1-T & unit\\
\hline
T1& 0.18 $\pm$ 0.05 & 0.30 $\pm$ 0.03 & keV\\
EM1&3.1 $\pm$ $1.3 \times 10^{48}$& 5.1 $\pm$ $0.7 \times10^{48}$&cm$^{-3}$ \\
T2&0.56 $\pm$ 0.19 & -- & keV\\
EM2& 2.3 $\pm$ $1.4 \times 10^{48}$& -- & cm$^{-3}$\\
\hline
&&& \\[-8pt]
$\chi^2_{\rm red}${\tiny(d.o.f.)}& 0.70 (6) & 0.83 (8 )&\\
$L_{\rm X}$ (0.2--2.0~keV) &1.0 $\times$ $10^{26}$ & 0.9 $\times$ $10^{26}$ &erg/s  \\
\hline
\end{tabular}
\end{table}