\begin{table}%t4
%\centering
\par
\caption{Best-fit parameters for KW~224, KW~212 and KW~181. Errors are
90\% confidence ranges for one interesting parameter.}
\begin{tabular}{lccc}
\hline\hline
\noalign{\smallskip}
  & KW~224& KW~212& KW~181 \\
\hline
\noalign{\smallskip}
$kT_1$ (keV)                & $0.41_{-0.03}^{+0.02}$& $0.51_{-0.03}^{+0.03}$&
$0.39_{-0.06}^{+0.07}$\\[2pt]
$kT_2$ (keV)                & $0.91_{-0.04}^{+0.04}$& \ldots                &
$0.89_{-0.16}^{+0.14}$\\[2pt]
$EM_1$ ($10^{52}$~cm$^{-3}$)& $4.85_{-1.24}^{+0.58}$& $2.83_{-0.98}^{+0.50}$&
$3.47_{-1.00}^{+0.95}$\\[2pt]
$EM_2$ ($10^{52}$~cm$^{-3}$)& $4.81_{-0.70}^{+0.73}$& \ldots                &
$1.77_{-0.51}^{+1.26}$\\[2pt]
$Z/Z_{\odot}$                & $0.41_{-0.07}^{+0.08}$& $0.49_{-0.09}^{+0.30}$&
$0.23_{-0.07}^{+0.12}$\\[2pt]
$\chi^2_{\rm r}/{\rm d.o.f.}$     & $1.11/196$            & $0.90/78$             &
$1.02/58$             \\[2pt]
$F_{\rm X}~(10^{-13}$ erg~cm$^{-2}$~s$^{-1}$)& $3.5$& $1.2$                &
$1.3$\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
\multicolumn{4}{l}{$F_{\rm X}$ is the unabsorbed flux in the $0.1{-}2.4$~keV
band.}\\
\end{tabular}
\label{fits}
\end{table}