\begin{table}%t1
%\centering
\par
\caption{\label{fit}Spectral fit results derived from ACIS-S data.}
\begin{tabular}{lrrl}
\hline\hline\noalign{\smallskip}
Par.  &  \multicolumn{2}{c}{1-T models}  &Unit\\\hline\noalign{\smallskip}
T1& $0.26\pm0.03$ & $0.26\pm0.03$ & keV\\
Abund.&0.33 & 1.0 &solar\\
EM1&$1.9\pm0.3 \times 10^{51}$ &$6.9\pm1.1 \times 10^{50}$&cm$^{-3}$ \\
\hline\noalign{\smallskip}
$\chi^2_{\rm red}${(d.o.f.)}& 0.83 (5) & 1.14 (5) &\\
\hline
\end{tabular}
\end{table}