\begin{table}%t1
%\centering
\par
\caption{Orbital parameters and inferred planetary characteristics derived from
the best-fit orbital solution with planetary perturbations for the four planets
around \object{$\mu$~Arae} at JD~=~$2~453~000 $ and keeping the inclination fixed at
$90^\circ $. 
\label{ta:orb}
}
$$
\begin{tabular}{l@{\hspace{0.2cm}}lr@{\hspace{0.2cm}$\pm$\hspace{0.2cm}}l}
\hline\hline
  \multicolumn{2}{l}{Parameter} 
& \multicolumn{2}{c}{$\mu$~Arae~b} \\
\hline
$P$ &$[$days$]$ & 643.25 & 0.90\\
%\hline
$T$ &[JD] & 2~452~365.6 & 12.6 \\
%\hline
$\lambda_0$ & [deg] & 17.6 & 0.4 \\
%\hline
$e$ & & 0.128 & 0.017 \\
%\hline
$\omega$ &[deg] & 22.0  & 7.0\\
%\hline
$K$  &[m~s$^{-1}$] & 37.78 & 0.40\\
\hline
\noalign{\smallskip}
$a_1\sin i$ & [AU] & \multicolumn{2}{c}{$2.215\times 10^{-3}$}\\
$f(m)$ &${[M_{\odot}]}$ 
  & \multicolumn{2}{c}{$3.504\times 10^{-9}$} \\
%\hline
$m_{1}$ &${[M_{\odot}]}$ 
        & \multicolumn{2}{c}{1.08} \\
%\hline
$m_{2}~\sin i$ &${[M_{\rm Jup}]}$ 
        & \multicolumn{2}{c}{1.676} \\
%\hline
$a$ &[AU] & \multicolumn{2}{c}{1.497}\\
%$T_{\rm eq}$ &[K]     & \multicolumn{2}{c}{TBD ??} \\
\hline
\end{tabular}
$$
\par
$$
\begin{tabular}{l@{\hspace{0.2cm}}lr@{\hspace{0.2cm}$\pm$\hspace{0.2cm}}l}
\hline
  \multicolumn{2}{l}{Parameter} 
& \multicolumn{2}{c}{$\mu$~Arae~c} \\
\hline
\noalign{\smallskip}
$P$ &$[$days$]$ & 9.6386 & 0.0015\\
%\hline
$T$ &[JD] & 2~452~991.1 & 0.4 \\
%\hline
$\lambda_0$ & [deg] & 183.4 & 2.9 \\
%\hline
$e$ & & 0.172 & 0.040\\
%\hline
$\omega$ &[deg] & 212.7  & 13.3 \\
%\hline
$K$  &[m~s$^{-1}$] & 3.06 & 0.13\\
\hline
\noalign{\smallskip}
$a_1\sin i$ & [AU] & \multicolumn{2}{c}{$2.670\times 10^{-6}$}\\
$f(m)$ &${[M_{\odot}]}$ 
  & \multicolumn{2}{c}{$2.734\times 10^{-14}$} \\
%\hline
$m_{1}$ &${[M_{\odot}]}$ 
        & \multicolumn{2}{c}{1.08} \\
%\hline
$m_{2}~\sin i$ &${[M_{\rm Jup}]}$ 
        & \multicolumn{2}{c}{0.03321} \\
%\hline
$a$ &[AU] & \multicolumn{2}{c}{0.09094}\\
%$T_{\rm eq}$ &[K]     & \multicolumn{2}{c}{TBD ??} \\
\hline
\end{tabular}$$
\par
$$
\begin{tabular}{l@{\hspace{0.2cm}}lr@{\hspace{0.2cm}$\pm$\hspace{0.2cm}}l}
\hline
  \multicolumn{2}{l}{Parameter} 
& \multicolumn{2}{c}{$\mu$~Arae~d} \\
\hline
$P$ &$[$days$]$ & 310.55 & 0.83 \\
%\hline
$T$ &[JD] & 2~452~708.7 & 8.3 \\
%\hline
$\lambda_0$ & [deg] & 167.3 & 1.7 \\
%\hline
$e$ & & 0.0666 & 0.0122 \\
%\hline
$\omega$ &[deg] & 189.6 & 9.4 \\
%\hline
$K$  &[m~s$^{-1}$] & 14.91 & 0.59 \\
\hline
\noalign{\smallskip}
$a_1\sin i$ & [AU] & \multicolumn{2}{c}{$4.247\times 10^{-4}$}\\
$f(m)$ &${[M_{\odot}]}$ 
  & \multicolumn{2}{c}{$1.060\times 10^{-10}$} \\
%\hline
$m_{1}$ &${[M_{\odot}]}$ 
        & \multicolumn{2}{c}{1.08} \\
%\hline
$m_{2}~\sin i$ &${[M_{\rm Jup}]}$ 
        & \multicolumn{2}{c}{0.5219} \\
%\hline
$a$ &[AU] & \multicolumn{2}{c}{0.9210}\\
%$T_{\rm eq}$ &[K]     & \multicolumn{2}{c}{TBD ??} \\
\hline
\end{tabular}$$
\par
$$
\begin{tabular}{l@{\hspace{0.2cm}}lr@{\hspace{0.2cm}$\pm$\hspace{0.2cm}}l}
\hline
  \multicolumn{2}{l}{Parameter} 
& \multicolumn{2}{c}{$\mu$~Arae~e} \\
\hline
\noalign{\smallskip}
$P$ &$[$days$]$ & 4205.8 & 758.9 \\
%\hline
$T$ &[JD] & 2~452~955.2 & 521.8 \\
%\hline
$\lambda_0$ & [deg] & 61.4 & 9.2 \\
%\hline
$e$ & & 0.0985 & 0.0627 \\
%\hline
$\omega$ &[deg] & 57.6 & 43.7 \\
%\hline
$K$  &[m~s$^{-1}$] & 21.79 & 2.30\\
\hline
\noalign{\smallskip}
$a_1\sin i$ & [AU] & \multicolumn{2}{c}{$8.382\times 10^{-3}$}\\
$f(m)$ &${[M_{\odot}]}$ 
  & \multicolumn{2}{c}{$4.441\times 10^{-9}$} \\
%\hline
$m_{1}$ &${[M_{\odot}]}$ 
        & \multicolumn{2}{c}{1.08} \\
%\hline
$m_{2}~\sin i$ &${[M_{\rm Jup}]}$ 
        & \multicolumn{2}{c}{1.814} \\
%\hline
$a$ &[AU] & \multicolumn{2}{c}{5.235}\\
% $T_{\rm eq}$ &[K]        & \multicolumn{2}{c}{TBD ??} \\
\hline
\end{tabular}
$$
\end{table}