\begin{table}%t3
\caption{\label{tab:par}The atmospheric parameters of the sample stars. The values for [\ion{Fe}{i}/H] and [\ion{Fe}{ii}/H] are
  followed by the standard deviation and the number of lines on which
  the abundance is based. The spectroscopic values are the ones adopted throughout this work.} 
 %\centering
\par
\begin{tabular}{lccccccc}
\noalign{\smallskip}
\hline\hline
\noalign{\smallskip}
Star & $T_{\rm eff}$ (K) & $T_{\rm eff}$ (K) & log $g$    & log $g$   &  $\xi$ (km s$^{-1}$) & [\ion{Fe}{i}/H] $\pm$ $\sigma$~(\#)& [\ion{Fe}{ii}/H] $\pm$ $\sigma$~(\#) \\
     & spectr.           &  phot.            &  spectr. &  evolut.  &                      &                                     &                                                \\
\hline
\object{IC 2714\_5}    & 5070 & 5020 & 2.70 & 2.49 & 1.50 & +0.12~$\pm$~0.09 (38) & +0.12~$\pm$~0.04 (10) \\
\object{IC 4756\_12}   & 5030 & 5189 & 2.75 & 2.79 & 1.37 & $-$0.01~$\pm$~0.09 (39) & $-$0.01~$\pm$~0.06 (13) \\
\object{IC 4756\_14}   & 4720 & 5627 & 2.47 & 2.36 & 1.57 & +0.03~$\pm$~0.14 (41) & +0.03~$\pm$~0.08 (11) \\
\object{IC 4756\_28}   & 4620 & 4548 & 2.42 & 2.36 & 1.41 & +0.07~$\pm$~0.12 (39) & +0.07~$\pm$~0.09 (12) \\
\object{IC 4756\_38}   & 5075 & 5056 & 3.00 & 2.92 & 1.21 & +0.05~$\pm$~0.09 (41) & +0.05~$\pm$~0.07 (13) \\
\object{IC 4756\_69}   & 5130 & 5158 & 3.00 & 2.71 & 1.31 & +0.08~$\pm$~0.08 (42) & +0.08~$\pm$~0.06 (11) \\
\object{NGC 2360\_7}   & 5115 & 5016 & 3.00 & 2.82 & 1.21 & +0.11~$\pm$~0.11 (38) & +0.10~$\pm$~0.05 (10) \\ 
\object{NGC 2360\_50}  & 5015 & 4897 & 2.90 & 2.77 & 1.37 & $-$0.03~$\pm$~0.05 (27) & $-$0.02~$\pm$~0.11 (10) \\
\object{NGC 2360\_62}  & 5105 & 5153 & 3.15 & 2.88 & 0.91 & +0.12~$\pm$~0.08 (32) & +0.10~$\pm$~0.12 (13) \\
\object{NGC 2360\_86}  & 4960 & 4906 & 2.65 & 2.62 & 1.18 & $-$0.06~$\pm$~0.15 (40) & $-$0.07~$\pm$~0.03 (08) \\
\object{NGC 2447\_28}  & 5060 & 5054 & 2.70 & 2.50 & 1.46 & $-$0.01~$\pm$~0.14 (38) &  0.00~$\pm$~0.08 (10) \\
\object{NGC 2447\_34}  & 5120 & 5121 & 2.90 & 2.63 & 1.44 & $-$0.01~$\pm$~0.12 (38) & $-$0.01~$\pm$~0.09 (11) \\
\object{NGC 2447\_41}  & 5055 & 5028 & 2.80 & 2.57 & 1.37 & $-$0.02~$\pm$~0.11 (37) & $-$0.02~$\pm$~0.09 (11) \\
\object{NGC 3532\_19}  & 4995 & 5033 & 2.65 & 2.36 & 1.52 & +0.11~$\pm$~0.11 (41) & +0.09~$\pm$~0.05 (12) \\
\object{NGC 3532\_100} & 4745 & 4731 & 2.15 & 2.13 & 1.66 & +0.01~$\pm$~0.12 (37) & +0.02~$\pm$~0.05 (11) \\
\object{NGC 3532\_122} & 5045 & 5042 & 2.60 & 2.56 & 1.54 & $-$0.02~$\pm$~0.11 (39) & $-$0.02~$\pm$~0.11 (11) \\
\object{NGC 3532\_596} & 5020 & 4943 & 2.50 & 2.44 & 1.58 & +0.04~$\pm$~0.11 (41) & +0.04~$\pm$~0.09 (12) \\
\object{NGC 3532\_670} & 4355 & 4316 & 1.80 & 1.70 & 1.52 & +0.08~$\pm$~0.11 (28) & +0.08~$\pm$~0.13 (11) \\
\object{NGC 3680\_13}  & 4660 & 4684 & 2.60 & 2.58 & 1.30 & +0.04~$\pm$~0.10 (38) & +0.06~$\pm$~0.12 (13) \\
\object{NGC 5822\_1}   & 4470 & 4559 & 2.00 & 2.00 & 1.38 & +0.03~$\pm$~0.10 (32) & +0.03~$\pm$~0.09 (11) \\
\object{NGC 5822\_201} & 5035 & 5035 & 2.85 & 2.78 & 1.32 & +0.05~$\pm$~0.10 (44) & +0.06~$\pm$~0.06 (12) \\
\object{NGC 5822\_240} & 4425 & 4467 & 1.95 & 2.12 & 1.34 & +0.02~$\pm$~0.11 (32) & +0.03~$\pm$~0.12 (11) \\
\object{NGC 5822\_316} & 5110 & 5125 & 3.05 & 2.92 & 1.28 & +0.16~$\pm$~0.10 (43) & +0.16~$\pm$~0.03 (10) \\
\object{NGC 5822\_443} & 4610 & 4648 & 2.10 & 2.34 & 1.53 & $-$0.06~$\pm$~0.11 (38) & $-$0.06~$\pm$~0.08 (12) \\
\object{NGC 6134\_30}  & 4980 & 5138 & 2.95 & 2.99 & 1.23 & +0.21~$\pm$~0.11 (41) & +0.21~$\pm$~0.08 (10) \\
\object{NGC 6134\_99}  & 4785 & 4898 & 2.55 & 2.81 & 1.39 & +0.10~$\pm$~0.10 (37) & +0.10~$\pm$~0.10 (12) \\
\object{NGC 6134\_202} & 4555 & 4677 & 2.25 & 2.67 & 1.34 & +0.04~$\pm$~0.10 (34) & +0.06~$\pm$~0.12 (09) \\
\object{NGC 6281\_3}   & 4915 & 4860 & 2.30 & 2.24 & 1.64 & +0.01~$\pm$~0.09 (38) & +0.01~$\pm$~0.07 (13) \\
\object{NGC 6281\_4}   & 5015 & 4855 & 2.50 & 2.35 & 1.70 & +0.09~$\pm$~0.07 (33) & +0.09~$\pm$~0.04 (10) \\
\object{NGC 6633\_78}  & 4370 & 4383 & 1.80 & 1.79 & 1.51 & +0.04~$\pm$~0.10 (31) & +0.03~$\pm$~0.15 (12) \\
\object{NGC 6633\_100} & 5015 & 5016 & 2.85 & 2.56 & 1.44 & +0.11~$\pm$~0.11 (42) & +0.11~$\pm$~0.08 (12) \\
\hline
\end{tabular}
\end{table}