\begin{table}%T4 \caption{\label{chemtab}Results of the chemical analysis. } \small%\centering \par \begin{tabular}{c c c c c c c c c c c c c} \hline\hline\noalign{\smallskip} Star &\multicolumn{3}{c}{Fe {\sc i}}&\multicolumn{3}{c}{Na {\sc i}}&\multicolumn{3}{c}{Al {\sc i}}&\multicolumn{3}{c}{Si {\sc i}}\\ or &\multicolumn{3}{c}{}&\multicolumn{3}{c}{}&\multicolumn{3}{c}{}&\multicolumn{3}{c}{}\\ cluster name&\multicolumn{1}{c}{[X/H]}&$N$&$\sigma$&\multicolumn{1}{c}{[X/H]}&$N$&$\sigma$&\multicolumn{1}{c}{[X/H]}&$N$&$\sigma$&\multicolumn{1}{c}{[X/H]}&$N$&\multicolumn{1}{c}{$\sigma$}\\ \hline \multicolumn{13}{c}{dwarfs}\\ HER 165& 0.05 $\pm$ 0.09& 62& 0.04& $-$0.10 $\pm$ 0.06& 3& 0.03& $-$0.01 $\pm$ 0.05& 1& 0.00& 0.01 $\pm$ 0.02& 8& 0.04\\ HER 240& $-$0.02 $\pm$ 0.09& 62& 0.05& $-$0.17 $\pm$ 0.06& 3& 0.06& $-$0.20 $\pm$ 0.05& 2& 0.04& $-$0.06 $\pm$ 0.02& 8& 0.03\\ HER 97& 0.00 $\pm$ 0.09& 61& 0.06& $-$0.18 $\pm$ 0.06& 3& 0.08& $-$0.06 $\pm$ 0.05& 1& 0.00& $-$0.07 $\pm$ 0.03& 8& 0.03\\ \\ \multicolumn{13}{c}{mean dwarf}\\ IC 4756 & 0.01&\multicolumn{2}{c}{}&$-$0.15&\multicolumn{2}{c}{}&$-$0.09&\multicolumn{2}{c}{}&$-$0.04&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{giants}\\ No 38 & 0.08 $\pm$ 0.11& 16& 0.08& 0.19~$\pm$~0.04& 3& 0.04 & --0.04~$\pm$~0.03& 2& 0.03& 0.10~$\pm$~0.02& 9& 0.06\\ No 42 & 0.10 $\pm$ 0.11& 15& 0.08& 0.23~$\pm$~0.03& 3& 0.05 & --0.03~$\pm$~0.03& 2& 0.05& 0.11~$\pm$~0.02& 9& 0.06\\ No 125 & 0.07 $\pm$ 0.11& 15& 0.08& 0.16~$\pm$~0.04& 3& 0.04 & --0.03~$\pm$~0.03& 2& 0.04& 0.09~$\pm$~0.02& 9& 0.05\\ \\ \multicolumn{13}{c}{mean giant}\\ IC 4756 & 0.08&\multicolumn{2}{c}{}& 0.19&\multicolumn{2}{c}{}&$-$0.03&\multicolumn{2}{c}{}& 0.10&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{dwarfs}\\ TATM 11014& 0.07 $\pm$ 0.09& 49& 0.05& $-$0.11 $\pm$ 0.06& 3& 0.05& $-$0.05 $\pm$ 0.05& 1& 0.00& 0.04 $\pm$ 0.03& 6& 0.03\\ TATM 11003& 0.02 $\pm$ 0.09& 57& 0.07& $-$0.19 $\pm$ 0.06& 2& 0.03& -- & --& -- & $-$0.01 $\pm$ 0.03& 7& 0.05\\ \\ \multicolumn{13}{c}{mean dwarf}\\ NGC 5822&0.05&\multicolumn{2}{c}{}&$-$0.15&\multicolumn{2}{c}{}&$-$0.05&\multicolumn{2}{c}{}& 0.01&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{giants}\\ No 102 & 0.05 $\pm$ 0.06& 13& 0.04& 0.15~$\pm$~0.03& 3& 0.09& $-$0.04~$\pm$~0.02& 2& 0.09 & 0.03~$\pm$~0.02& 9& 0.09\\ No 224 & 0.22 $\pm$ 0.08& 14& 0.06& 0.26~$\pm$~0.03& 3& 0.05& 0.05~$\pm$~0.02& 2& 0.06 & 0.18~$\pm$~0.02& 9& 0.07\\ No 438 & 0.18 $\pm$ 0.08& 16& 0.06& 0.23~$\pm$~0.03& 3& 0.05& 0.05~$\pm$~0.02& 2& 0.05 & 0.20~$\pm$~0.02& 9& 0.12\\ \\ \multicolumn{13}{c}{mean giant}\\ NGC 5822&0.15&\multicolumn{2}{c}{}& 0.21&\multicolumn{2}{c}{}& 0.02&\multicolumn{2}{c}{}& 0.14&\multicolumn{2}{c}{}\\ \multicolumn{13}{c}{}\\ \hline\noalign{\smallskip} &\multicolumn{3}{c}{Ca {\sc i}}&\multicolumn{3}{c}{Ti {\sc i}}&\multicolumn{3}{c}{Cr {\sc i}}&\multicolumn{3}{c}{Ni {\sc i}}\\ \multicolumn{13}{c}{dwarfs}\\ HER 165& 0.10 $\pm$ 0.08& 9& 0.04& 0.02 $\pm$ 0.10& 11& 0.06& 0.05 $\pm$ 0.11& 6& 0.05& $-$0.03 $\pm$ 0.06& 21& 0.05\\ HER 240& $-$0.01 $\pm$ 0.08& 11& 0.03& $-$0.05 $\pm$ 0.10& 10& 0.06& 0.00 $\pm$ 0.11& 6& 0.05& $-$0.09 $\pm$ 0.06& 22& 0.05\\ HER 97& 0.06 $\pm$ 0.08& 11& 0.06& $-$0.08 $\pm$ 0.10& 11& 0.12& $-$0.04 $\pm$ 0.11& 5& 0.04& $-$0.07 $\pm$ 0.07& 20& 0.07\\ \\ \multicolumn{13}{c}{mean dwarf}\\ IC 4756 &0.05&\multicolumn{2}{c}{} &$-$0.04&\multicolumn{2}{c}{}& 0.00&\multicolumn{2}{c}{}&$-$0.06&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{giants}\\ No 38 & 0.06~$\pm$~0.05& 9 & 0.04& 0.11~$\pm$~0.07& 9& 0.08& 0.08~$\pm$~0.07& 6& 0.03& 0.03~$\pm$~0.03& 23& 0.07\\ No 42 & 0.09~$\pm$~0.05& 9 & 0.05& 0.15~$\pm$~0.07& 9& 0.09& 0.14~$\pm$~0.07& 6& 0.03& 0.05~$\pm$~0.03& 23& 0.07\\ No 125 & 0.03~$\pm$~0.05& 9 & 0.05& 0.08~$\pm$~0.07& 9& 0.08& 0.05~$\pm$~0.07& 6& 0.04& 0.05~$\pm$~0.03& 23& 0.08\\ \\ \multicolumn{13}{c}{mean giant}\\ IC 4756 & 0.06&\multicolumn{2}{c}{}& 0.11&\multicolumn{2}{c}{}& 0.08&\multicolumn{2}{c}{}& 0.04&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{dwarfs}\\ TATM 11014& 0.09 $\pm$ 0.08& 9& 0.05& 0.01 $\pm$ 0.09& 6& 0.07& 0.11 $\pm$ 0.10& 6& 0.04& $-$0.01 $\pm$ 0.06& 21& 0.06\\ TATM 11003& 0.06 $\pm$ 0.08& 9& 0.04& $-$0.02 $\pm$ 0.10& 9& 0.04& 0.04 $\pm$ 0.11& 6& 0.10& $-$0.06 $\pm$ 0.06& 19& 0.07\\ \\ \multicolumn{13}{c}{mean dwarf}\\ NGC 5822& 0.08&\multicolumn{2}{c}{}& 0.00&\multicolumn{2}{c}{}& 0.07&\multicolumn{2}{c}{}&$-$0.03&\multicolumn{2}{c}{}\\ \\ \multicolumn{13}{c}{giants}\\ No 102 & 0.02~$\pm$~0.03& 9& 0.06& 0.07~$\pm$~0.05& 9& 0.08 & 0.09~$\pm$~0.05& 6& 0.05 & $-$0.11~$\pm$~0.02& 23& 0.09\\ No 224 & 0.16~$\pm$~0.03& 9& 0.07& 0.28~$\pm$~0.05& 9& 0.08 & 0.24~$\pm$~0.05& 6& 0.03 & 0.17~$\pm$~0.02& 23& 0.10\\ No 438 & 0.14~$\pm$~0.03& 9& 0.05& 0.19~$\pm$~0.05& 9& 0.09 & 0.21~$\pm$~0.05& 6& 0.03 & 0.14~$\pm$~0.02& 23& 0.09\\ \\ \multicolumn{13}{c}{mean giant}\\ NGC 5822&0.11&\multicolumn{2}{c}{}& 0.18&\multicolumn{2}{c}{}& 0.18&\multicolumn{2}{c}{}& 0.07&\multicolumn{2}{c}{}\\ \hline \end{tabular} \end{table}