\begin{table}%t2
 %\centering
\par
 \caption{\label{2table_pf} Constants of the dissociation equilibrium of \HHO in formats
of the ATLASxx, where xx labels a version of ASTLAS, the superscripts
correspond to different fit temperature ranges:
$^1$ -- $300~{\rm K} <  T  < 1000$~K,
$^2$ -- $300~{\rm K} <  T  < 6000$~K,
$^3$ -- $60~{\rm K} <  T  < 6000$~K,
\mbox{$^4$~--~$50~{\rm K} <  T  < 10~000$}.
}
\begin{tabular}{ccccccc}
\hline\hline
 $D_{o}$ & $b$      &  $c$ &        $d$       &  $e$  &     $f$ & Refs. \\
\hline
 9.500& 0.9193E+02& 0.2550E-02& 0.4088E-06& 0.3893E-10& 0.1512E-14& Pavlenko (\cite{Pavlenko02})$^1$ \\
 9.512& 9.3179E+01& 2.6725E-03& 5.7830E-07& 8.5268E-11& 5.1311E-15& Kurucz (\cite{Kurucz99}) \\
%v36
9.500 & 0.9374E+02 & 0.3494E-02&  0.9795E-06&  0.1655E-09&  0.1073E-13 & Vidler \& Tennyson (\cite{Vidler00})$^2$ \\
%v40
9.500 & 0.9494E+02 & 0.5858E-02&  0.2338E-05&  0.4634E-09&  0.3279E-13 & Vidler \& Tennyson (2000)$^3$ \\
%z1
9.500 & 0.9331E+02 & 0.2551E-02&  0.4089E-06&  0.3895E-10&  0.1513E-14 & This work$^1$ \\
%yx
9.500 & 0.9428E+02 & 0.3722E-02&  0.8305E-06&  0.9719E-10&  0.4238E-14 & This work$^4$ \\
\hline
\end{tabular}
%%\end{center}
\par
\end{table}