\begin{table}%t1
  \caption {\label{tab:psfit}Best-fit parameters from the fits to the spectra of 
  Elias~29, during 6~different time intervals (PN data only), using an absorbed 1T
  thermal model.}
\par
    \leavevmode
     %\centerline
 {\begin{tabular}{lccccccc}
\hline\hline\\[-3mm]
Time interval &  $N({\rm H})$ & $kT$ & $Z$ & $E\!M$ & $\chi^2$/d.o.f. & $P$ & $F_{\rm X}$\\
\hline
~ & $N_{22}$ & keV &  $Z_{\odot}$ & $E\!M_{53}$ & ~ & ~ & $F_{-13}$ \\
\hline
seg1 & 5.7 $\pm$ 0.7 & 4.6 $\pm$ 0.9 & 1.0 $\pm$ 0.3 & 0.7 $\pm$ 0.3 & 1.0 & 0.6 & 1.8\\
flare & 9.5 $\pm$ 2.0 & 4.1 $\pm$ 1.5 & 0.9 $\pm$ 0.3 & 4.5 $\pm$ 3.4 & 0.9 & 0.5 & 7.5\\
seg2 & 8.1 $\pm$ 1.3 & 3.1 $\pm$ 0.8 & 1.0 $\pm$ 0.3 & 0.7 $\pm$ 0.5 & 1.5 & 0.0 & 1.1\\
seg3 & 6.6 $\pm$ 0.8 & 3.4 $\pm$ 0.7 & 0.7 $\pm$ 0.2 & 0.8 $\pm$ 0.4 & 1.0 & 0.5 & 1.3\\
seg4 & 7.7 $\pm$ 0.6 & 3.7 $\pm$ 0.5 & 0.7 $\pm$ 0.1 & 1.7 $\pm$ 0.5 & 1.4 & 0.0 & 2.7\\
seg5 & 4.9 $\pm$ 0.4 & 4.7 $\pm$ 0.8 & 0.6 $\pm$ 0.1 & 1.1 $\pm$ 0.3 & 1.3 & 0.1 & 2.5\\
\hline
    \end{tabular}}
\par
      \smallskip
\par
Note: units are $N_{22} = 10^{22}~{\rm cm^{-2}}$, $E\!M_{53} =
10^{53}$~cm$^{-3}$, and $F_{-13}= 10^{-13}$~\ecms. The spectral fits
were carried out in the energy range \mbox{1.0--9.0}~keV. Flux values refer
to energy range 1.0--7.5~keV. The error bars are at~1$\sigma$. Reduced
$\chi^2$ and null-hypothesis probability~($P$) for the fits are also
given.
\par
\end{table}