\begin{table}%T1
           \caption{\label{tab1}A478 global properties from previous studies.}
$$
         \begin{tabular}{lcccccc}
         \hline
         \hline
         & Exosat$^{{a}}$ & Ginga/Einstein~$^{{b}}$ &
ROSAT/Ginga$^{{c}}$ & ASCA$^{{d}}$ &
Chandra$^{{e}}$ & XMM$^{{f}}$ \\
         \hline
        ~$kT$ (keV) & 6.8$^{+1.1}_{-1.0}$ & 6.84$^{+0.2}_{-0.24}$ &
6.56$^{+0.14}_{-0.14}$ & 6.58$^{+0.26}_{-0.25}$ &
7.18$^{+0.11}_{-0.11}$ & 6.17$^{+0.12}_{-0.06}$\\
        ~$\nh$ ($10^{21}$ cm$^{-2}$) & 1.1$^{+1.9}_{-0.7}$ &
3.6$^{+0.2}_{-0.2}$ & 2.49$^{+0.12}_{-0.09}$ & 3.0~$^{{g}}$ &
2.59$^{+0.03}_{-0.03}$ & 2.66$^{+0.02}_{-0.03}$ \\
        ~$Z$ ($Z_\odot$) & 0.27$^{+0.14}_{-0.16}$ & 0.37$^{+0.04}_{-0.04}$ &
0.39$^{+0.04}_{-0.04}$ & 0.31$^{+0.03}_{-0.03}$ &
0.37$^{+0.02}_{-0.02}$ & 0.32$^{+0.01}_{-0.01}$ \\
         \hline
                   \end{tabular}
$$
$^{{a}}$ Edge \& Stewart~(\cite{edge91}),
$^{{b}}$ Johnstone \etal (\cite{johnstone92}),
$^{{c}}$ Allen \etal (\cite{allen93}) and White
\etal (\cite{white94}),
$^{{d}}$ White (\cite{white00}), $^{{e}}$ Sun
\etal (\cite{sun03}), $^{{f}}$ this work,\\[-1.5mm]
$^{{g}}$~fixed parameter.\\%[2mm]
Note: all studies include the cooling core regions.
        \end{table}