\begin{table} %T7
   %\centering
\par
   \caption{\label{tab:v06}Parameters and fit values of the \citet{2006ApJ...640..691V}
     ICM model for \cldzero.}
     \small%\centering
\par
   \begin{tabular}{ccc}
   \hline\hline\noalign{\smallskip}
     Parameter & Quantity & Fit value \\
      \hline\noalign{\smallskip}
    $n_{0}^{2}$ & pivot density & $3.784\times10^{-3}~\mbox{cm}^{-3}$ \\
     $r_{{\rm c}}$ & core radius & $139~\mbox{kpc}$ \\
     $r_{{\rm s}}$ & scale radius & $421~\mbox{kpc}$ \\
     $\alpha$ & exponent & $0.5867$ \\
     $\beta$ & exponent & $0.4653$ \\
     $\varepsilon$ & exponent & $1.2293$
 \\  \hline
   \end{tabular}
  \end{table}