\begin{table}%t5
%\centering
\par
\caption{\label{ausgleich1}Values for the constants $a$ and $b$ in the formula~\ref{logt} for systems~4 and 5 (see Fig.~\ref{syst1}), as well as the errors from the least square fit.}
\begin{tabular}[h]{lcc}
\hline\hline
& $a$ & $b$\\
\hline
System 4 & 1.2013 $\pm$ 0.3023 & $-$2.3712 $\pm$ 1.4698\\
System 5 & 1.2617 $\pm$ 0.2476 & $-$2.8095 $\pm$ 1.2440\\
\hline
\end{tabular}
\end{table}