\begin{table}%t2
\caption{\label{tab_par}Best fit values for the Sersic parameters of
 the ICM, $\kappa$ from  
Eq.~(\ref{ratio}), and radius $r_{200}$ within  which the mean density is 200~times the critical density of the Universe.}
%\centering
\par
\begin{tabular}{p{1.5cm}*{5}{c}}
\hline\hline
\rule[-2mm]{0mm}{7mm}Cluster & $ \nu $ & $a_{\rm eq}$ (kpc) & ${n_{\rm e}}_0 \times 10^{-3}$ (cm$^{-3})$ & $ \kappa $ & $r_{200}$ (kpc) \\
\hline
A85   & 0.55~$\pm$~0.01 & 260~$\pm$~5  & 5.72~$\pm$~0.11   & 7.17~$\pm$~0.32     & 2714 \\
A478  & 0.50~$\pm$~0.01 & 143~$\pm$~4  & 18.51~$\pm$~0.52  & 7.04~$\pm$~0.42     & 2607 \\
A644  & 0.82~$\pm$~0.01 & 389~$\pm$~6  & 3.58~$\pm$~0.06   & 7.19~$\pm$~0.21     & 2421 \\
A1651 & 0.74~$\pm$~0.02 & 385~$\pm$~9  & 3.57~$\pm$~0.11   & 6.59~$\pm$~0.25     & 2453 \\
A1689 & 0.58~$\pm$~0.01 & 198~$\pm$~9  & 14.26~$\pm$~0.82  & 7.90~$\pm$~0.35     & 2594 \\
A1795 & 0.54~$\pm$~0.00 & 164~$\pm$~2  & 12.30~$\pm$~0.23  & 7.64~$\pm$~0.21     & 2462 \\
A2029 & 0.49~$\pm$~0.01 & 151~$\pm$~4  & 16.63~$\pm$~0.52  & 8.65~$\pm$~0.43     & 2946 \\
A2034 & 1.00~$\pm$~0.03 & 811~$\pm$~18 & 1.72~$\pm$~0.04   & 3.58~$\pm$~0.43     & 2450 \\
A2052 & 0.47~$\pm$~0.01 & 100~$\pm$~5  & 11.70~$\pm$~0.72  & 9.90~$\pm$~0.67     & 1930 \\
A2142 & 0.81~$\pm$~0.01 & 528~$\pm$~6  & 3.86~$\pm$~0.05   & 4.26~$\pm$~0.50     & 2824 \\
A2199 & 0.60~$\pm$~0.00 & 180~$\pm$~1  & 6.82~$\pm$~0.06   & 9.42~$\pm$~0.20     & 2142 \\
A2219 & 0.85~$\pm$~0.02 & 689~$\pm$~15 & 3.40~$\pm$~0.08   & 4.04~$\pm$~0.24     & 2887 \\
A2244 & 0.56~$\pm$~0.02 & 237~$\pm$~17 & 6.38~$\pm$~0.68   & 13.05~$\pm$~0.70    & 3039 \\
A2319 & 0.80~$\pm$~0.01 & 755~$\pm$~13 & 1.86~$\pm$~0.04   & 5.13~$\pm$~0.10     & 3294 \\
A2382 & 1.17~$\pm$~0.04 & 831~$\pm$~19 & 0.49~$\pm$~0.01   & 6.61~$\pm$~0.66     & 1900 \\
A2390 & 0.59~$\pm$~0.02 & 313~$\pm$~16 & 8.61~$\pm$~0.48   & 5.13~$\pm$~0.62     & 2658 \\
A2589 & 0.72~$\pm$~0.02 & 312~$\pm$~8  & 2.31~$\pm$~0.07   & 9.25~$\pm$~1.73     & 2008 \\
A2597 & 0.39~$\pm$~0.01 & 37~$\pm$~4   & 71.44~$\pm$~46.76 & 12.42~$\pm$~1.60    & 2035 \\
A2670 & 0.52~$\pm$~0.03 & 215~$\pm$~27 & 4.05~$\pm$~0.74   & 11.44~$\pm$~0.58    & 2331 \\
A2744 & 1.35~$\pm$~0.07 & 877~$\pm$~25 & 2.26~$\pm$~0.07   & 4.82~$\pm$~0.29     & 2506 \\
A3266 & 1.18~$\pm$~0.01 & 935~$\pm$~7  & 1.22~$\pm$~0.01   & 5.66~$\pm$~0.20     & 2973 \\
A3667 & 0.89~$\pm$~0.01 & 990~$\pm$~9  & 1.07~$\pm$~0.01   & 3.29~$\pm$~0.36     & 2723 \\
A3921 & 0.81~$\pm$~0.02 & 653~$\pm$~15 & 1.41~$\pm$~0.04   & 3.66~$\pm$~0.50     & 2090 \\
A4059 & 0.64~$\pm$~0.01 & 233~$\pm$~8  & 4.34~$\pm$~0.18   & 8.46~$\pm$~1.02     & 2033 \\
HCG62 & 0.36    & 22   & 17.4      & 36.9~$\pm$~1.63     & $-$ \\
\hline
\end{tabular}
\end{table}