\begin{table}%t5
%\centering
\par
\caption{\label{tab:final}Physical properties of the stellar components of SDSS~J1006.}
\begin{tabular}{l c c}
\hline\hline
Quantity                    & White dwarf              & M dwarf                  \\
\hline
Semimajor axis (\Rsun)      & \multicolumn{2}{c}{$1.45 \pm 0.10$}                 \\
Mass (\Msun)                & $0.78 \pm 0.12$          & $0.40 \pm 0.10$          \\
Radius (\Rsun)              & $0.016 \pm 0.006$        & $0.466 \pm 0.036$        \\
\logg\ [cm~s$^{-2}$]       & $7.93 \pm 0.33$          & $4.701 \pm 0.079$        \\
\hline \end{tabular} \end{table}