\begin{table}%t5 \par \caption{\label{tab:uma_mem_par}Stellar parameters of the 18 Sun-like stars.} %\centerline {\tiny \begin{tabular}{lrrrrrrrrrrrrrr} \hline\hline\\[-3mm] Object&$T_{\rm eff}$&$\log g$&[Fe/H]&[Mg/Fe]&\multicolumn{1}{c}{$\xi_{\rm t}$}&\multicolumn{1}{c}{$\zeta_{\rm RT}$}&\multicolumn{1}{c}{$v\sin i$}&ref.&\multicolumn{1}{c}{$M$}&\multicolumn{1}{c}{$R$}&$B.C._V$&$M_{\rm bol}$&$d_{\rm sp}$&\multicolumn{1}{c}{$\frac{d_{\rm sp}-d_{\rm HIP}}{d_{\rm HIP}}$}\\ &[K]&[cm/s$^2$]&&&[km~s$^{-1}$]&[km~s$^{-1}$]&[km~s$^{-1}$]&&[$M_\odot$]&[$R_\odot$]&&&[pc]&\multicolumn{1}{c}{[\%]}\\ \hline \multicolumn{15}{l}{\it M01k}\\[1mm] HD 11131 & 5796& 4.43&--0.10& 0.00&0.97&3.70& 1.5& 2& 1.00& 1.01&--0.13& 4.73& 23.8& 0.6\\ %\vspace{\tablinesep} & 70& 0.10&0.07& 0.05&0.20&& 1.0&& 0.05& 0.04&&0.07& 3.3&\\ HD 24916~A& 4600& 4.60&--0.03&-- &-- & -- & 2.1& 3& 0.70& 0.69&--0.57& 6.48& 15.4& --2.4\\ %\vspace{\tablinesep} & 100& 0.20&0.15& -- & -- && 2.0&& 0.05& 0.03&&0.09& 3.7&\\ HD 26923 & 5975& 4.41&--0.06&--0.01&0.99&4.40& $<$1.0& 2& 1.07& 1.01&--0.11& 4.57& 22.4& 5.5\\ %\vspace{\tablinesep} & 70& 0.10&0.07& 0.05&0.20&&-- && 0.05& 0.04&&0.07& 3.0&\\ HD 38393 & 6310& 4.28$^1$&--0.05& 0.01&1.30&5.70& 8.1& 1& 1.23& 1.33&--0.08& 3.74& --& --\\ %\vspace{\tablinesep} & 60& 0.03&0.05& 0.06&0.20&& 1.0&& 0.05& 0.04&&0.05& --&\\ HD 41593 & 5278& 4.54& 0.02&--0.01&1.12&1.70& 4.3& 2& 0.89& 0.82&--0.24& 5.57& 15.8& 2.5\\ %\vspace{\tablinesep} & 80& 0.10&0.07& 0.05&0.20&& 1.0&& 0.05& 0.03&&0.06& 2.2&\\ % HD 111456 & 6300& 4.32& --& --& --&5.70& 41.0& 4& --& --& --& --& --& --\\ HD 112196 & 6110& 4.39$^1$& 0.01& 0.02&1.31&4.90& 12.0& 1& 1.15& 1.14&--0.09& 4.22& --& --\\ %\vspace{\tablinesep} & 60& 0.06&0.05& 0.05&0.20&& 1.0&& 0.05& 0.08&&0.14& --&\\ % HD 134083 & 6480& 4.30& --& --&-- &6.40& 45.0& 4& --& --& --& --& --& --\\ HD 167389 & 5895& 4.37&--0.02&--0.03&0.99&4.00& 3.3& 1& 1.05& 1.01&--0.12& 4.64& 36.8& 10.0\\ %\vspace{\tablinesep} & 80& 0.15&0.07& 0.05&0.20&& 1.0&& 0.05& 0.04&&0.07& 6.5&\\ HD 184960 & 6310& 4.22&--0.08&--0.01&1.55&5.70& 8.0& 1& 1.23& 1.43&--0.08& 3.59& 25.6& 0.0\\ %\vspace{\tablinesep} & 80& 0.10&0.05& 0.05&0.20&& 1.0&& 0.05& 0.05&&0.06& 3.1&\\ \hline \multicolumn{15}{l}{{\it M01k, K03k, K03f}}\\[1mm] HD 59747 & 5094& 4.55&--0.03&--0.01&1.00&0.90& 1.5& 2& 0.83& 0.76&--0.31& 5.90& 20.8& 5.8\\ %\vspace{\tablinesep} & 90& 0.10&0.07& 0.05&0.20&& 1.0&& 0.05& 0.04&&0.08& 2.9&\\ HD 109647 & 4980& 4.70& 0.05&--0.07&0.80&0.40& 3.1& 1& 0.83& 0.74&--0.36& 6.05& 24.0& --8.8\\ %\vspace{\tablinesep} &60& 0.15&0.15& 0.15&0.20&& 1.0&& 0.05& 0.03&&0.08& 4.3&\\ HD 110463 & 4940& 4.68& 0.00&--0.02&0.86&0.40& 3.1& 1& 0.80& 0.75&--0.38& 6.05& 20.9& --9.8\\ %\vspace{\tablinesep} & 80& 0.18&0.10& 0.10&0.20&& 1.0&& 0.05& 0.03&&0.07& 4.5&\\ %\vspace{\tablinesep} HD 115043 & 5850& 4.36&--0.10& 0.05&1.26&3.90& 7.5& 1& 1.05& 1.03&--0.13& 4.64& 28.3& 9.3\\ %\vspace{\tablinesep} & 70& 0.13&0.07& 0.05&0.20&& 1.0&& 0.05& 0.04&&0.06& 4.4&\\ \hline \multicolumn{15}{l}{{\it K03k, K03f}}\\[1mm] HD 28495 & 5465& 4.45&--0.05& 0.00&0.93&2.34& 4.5& 1& 0.95& 0.85&--0.19& 5.35& 31.3& 13.8\\ %\vspace{\tablinesep} & 90& 0.12&0.05& 0.05&0.20&& 1.0&& 0.10& 0.04&&0.08& 4.8&\\ HD 39587 & 5920& 4.39&--0.07&--0.01&0.95&4.20& 8.7& 2& 1.04& 1.03&--0.12& 4.59& 9.1& 5.3\\ %\vspace{\tablinesep} & 70& 0.10&0.07& 0.05&0.20&& 0.8&& 0.05& 0.04&&0.05& 1.3&\\ HD 71974~A$^2$ & 5570& 4.49&--&--&--&2.8&3.2&1 &--&--&--&--& --&--\\ %\vspace{\tablinesep} & 100& 0.19&--&--&--&&1.0&&--&--&&--&--&\\ HD 109011 & 5000& 4.60& --0.12&--0.03&$\la$0.52&0.50& 5.0& 1& 0.83& 0.81&--0.34& 5.85& 22.3& --6.0\\ %\vspace{\tablinesep} &100& 0.20&0.07& 0.07&--&& 1.0&& 0.05& 0.07&&0.17& 5.3&\\ HD 171746~A & 6100& 4.36$^1$&--0.04& 0.03&1.50&4.80& 8.3& 1& 1.15& 1.18&--0.10& 4.16& --& --\\ %\vspace{\tablinesep} & 80& 0.06&0.06& 0.05&0.20&& 1.0&& 0.05& 0.08&&0.14& --&\\ HD 171746~B & 6040& 4.37$^1$& 0.02&--0.04&1.51&4.60& 7.3& 1& 1.10& 1.16&--0.10& 4.24& --& --\\ %\vspace{\tablinesep} & 80& 0.06&0.05& 0.05&0.20&& 1.0&& 0.05& 0.08&&0.14& --&\\ \hline \end{tabular}} \medskip \par The stellar parameters of the sample stars which were studied following the methods of \citet{Fuhrmann98}. The stars are grouped according to the samples they form part of (Table~\ref{tab:uma_mem_data}). The following quantities are listed with the second line providing the errors bars: {(2)} effective temperature, {(3)} surface gravity, {(4)} iron abundance, {(5)} magnesium abundance relative to iron, {(6)} microturbulence parameter, {(7)} macroturbulence parameter, {(8)} projected rotational velocity, {(9)} source of the values: 1~= this work, 2~= \citetalias{Fuhrmann04}, 3~= \citet{Koenig06}, {(10)} mass, {(11)} radius, {(12)} bolometric correction based on \citet{AAM95}, {(13)} absolute bolometric magnitude (from {\em Hipparcos} distance), {(14)} spectroscopic distance, and {(15)}~relative offset from {\em Hipparcos} distance.\\ $^1$ Surface gravity derived from {\em Hipparcos} parallax as described in Sect.~\ref{sect:hipparcos}. The comparison of spectroscopic distance with {\em Hipparcos} distance cannot be done.\\ $^2$ The stellar parameters are preliminary because HD~71974 is a spectroscopically unresolved binary (see discussion of individual objects in Sect.~\ref{sect:mult}). Abundances could not be derived. \end{table}