\begin{table}%t2
\caption{\label{tab2}Physical parameters of Pollux from the literature.}           
%\centering
\par
\begin{tabular}{c c c c c l}     
\hline\hline               
$T_{\rm eff}$  & $\log g$ & Fe/H   & $v$sin$i$      &Mass        & References   \\
           &          &        & km s$^{-1}$& $M_{\odot}$&             \\
\hline 
           &          &        & 2.5        &            & Gray (\cite{Gray1982})    \\
4865       &2.75      &        &            &1.7         & Drake (\cite{Drake1991})   \\
           &          &        & 1.7        &            & Fekel (\cite{Fekel1997})    \\
4850       & 2.96     & $-$0.07  &            &            & McWilliams (\cite{McWilliams1990})  \\
4786       & 2.77     &        &            &1.7         & Allende-Prieto (\cite{Allende1999})   \\
4850       & 2.52     & +0.08  &            &            & Gray (\cite{Gray2003})      \\
4660       & 2.68     & 0.19   &            &            & Allende-Prieto (\cite{Allende2004})   \\
4925       & 3.15     &        & 1.67       &            & Hekker (\cite{Hekker2007})    \\
4904       & 2.84     & +0.04  & 1.61       &2.31        & Takeda (\cite{Takeda2008})    \\
4841       &          &        &  2.7       &            & Massarotti (\cite{Massarotti2008}) \\
\par
\hline                                 
\end{tabular}
\end{table}