\begin{table}%t1
%\centering
\par
\caption{Parameters for the model grid.} \label{tab}
\begin{tabular}{ccccc}
  \hline\hline
  % after \\: \hline or \cline{col1-col2} \cline{col3-col4} ...
  %\\
  Models of & Models of & Models of & & \\
  series \textbf{\emph{A}} & series \textbf{\emph{B}} & series
  \textbf{\emph{C}}& $M_{0}$ & $B_{x}(0)$ \\
  $\gamma_{1}=5$ & $\gamma_{1}=10$ & $\gamma_{1}=10$ & [g cm$^{-2}$] & [Gauss] \\
  $\gamma_{2}=30$ & $\gamma_{2}=60$ & $\gamma_{2}=30$ & & \\
  %Models of \\series \textbf{\emph{A}} \\ $\gamma_{1}=5$ \\ $\gamma_{2}=30$&
%  Models of \\series \textbf{\emph{B}} \\ $\gamma_{1}=10$ \\ $\gamma_{2}=60$ &
%  Models of \\series \textbf{\emph{C}} \\ $\gamma_{1}=10$ \\ $\gamma_{2}=30$&
%  $M_{0}$ [g cm$^{-2}$] & $B_{x}(0)$ [Gauss]\\
%   \ & \ & \ & \ & \ \\
  \hline
%   \ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{1}$}} & \textbf{\emph{B$_{1}$}} & \textbf{\emph{C$_{1}$}} & $2\times10^{-4}$ & 8.4 \\
 %  \ & \ & \ & \ & \ \\
  %\hline
  %\ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{2}$}} & \textbf{\emph{B$_{2}$}} & \textbf{\emph{C$_{2}$}} & $5\times10^{-5}$ & 4 \\
 %  \ & \ & \ & \ & \ \\
  %\hline
  %\ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{3}$}} & \textbf{\emph{B$_{3}$}} & \textbf{\emph{C$_{3}$}} & $2\times10^{-5}$ & 2 \\
%   \ & \ & \ & \ & \ \\
  %\hline
  %\ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{3\_1}$}} & \textbf{\emph{B$_{3\_1}$}} & \textbf{\emph{C$_{3\_1}$}} & $2\times10^{-5}$ & 10 \\
%   \ & \ & \ & \ & \ \\
  %\hline
  %\ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{4}$}} & \textbf{\emph{B$_{4}$}} & \textbf{\emph{C$_{4}$}} & $5\times10^{-6}$ & 1 \\
 %  \ & \ & \ & \ & \ \\
  %\hline
  %\ & \ & \ & \ & \ \\
  \textbf{\emph{A$_{4\_1}$}} & \textbf{\emph{B$_{4\_1}$}} & \textbf{\emph{C$_{4\_1}$}} & $5\times10^{-6}$ & 5 \\
 %  \ & \ & \ & \ & \ \\
  \hline
\end{tabular}
\par
\end{table}