\begin{table}%t3
\caption{Parameters of the different galactic components.}\label{tab:param}
%\centering
\par
\begin{tabular}{llll}
\hline
\hline
Component & $N$ & $M$ ($M_{\odot}$) & $l$ (pc) \\
\hline
halo & 16~384 & $9.2 \times 10^{6}$ & 1200 \\
bulge & 16~384 & $3.2 \times 10^{5}$ & 180 \\
disk & 16~384 & $1.6 \times 10^{6}$ & 240 \\
companion & 11~000 & $9.2 \times 10^{6}$ & 1200 \\
\hline
\end{tabular}
\end{table}