\begin{table}%t2 \par \caption{\label{abundance}LTE atmospheric abundances for RR~Lyr.} \small%\centering \par \begin{tabular}{lccccc} \hline \hline\noalign{\smallskip} Ion &\multicolumn{4}{c}{RR~Lyr}& Sun \\ &$\log (N/N_{\rm tot})$ & $\log (N/N_{\rm tot})$ & $n$ & Remarks &$\log (N/N_{\rm tot})$ \\ \hline \ion{C}{i} & ~~$-$4.84~$\pm$~0.04 & ~~$-$4.78~$\pm$~0.07 & 4 & & ~~$-$3.65~ \\ \ion{N}{i} & ~~$-$4.77~$\pm$~0.11 & ~~$-$4.77~$\pm$~0.11 & 2 & S & ~~$-$4.26~ \\ \ion{O}{i} & ~~$-$3.98~$\pm$~0.04 & ~~$-$3.97~$\pm$~0.04 & 6 & S & ~~$-$3.38~ \\ \ion{Na}{i} & ~~$-$7.38~$\pm$~0.05 & ~~$-$7.38~$\pm$~0.05 & 2 & & ~~$-$5.87~ \\ \ion{Mg}{i}~ & ~~$-$5.54~$\pm$~0.10 & ~~$-$5.48~$\pm$~0.14 & 8 & & ~~$-$4.51~ \\ \ion{Al}{i} & ~~$-$6.59~$\pm$~0.26 & ~~$-$6.57~$\pm$~0.26 & 9 & S & ~~$-$5.67~ \\ \ion{Si}{i} & ~~$-$5.56~$\pm$~0.11 & ~~$-$5.55~$\pm$~0.11 & 10 & & ~~$-$4.53~ \\ \ion{Si}{ii} & ~~$-$5.61~$\pm$~0.04 & ~~$-$5.54~$\pm$~0.08 & 3 & & ~~$-$4.53~ \\ \ion{S}{i} & ~~$-$5.94~$\pm$~0.08 & ~~$-$5.93~$\pm$~0.08 & 7 & S & ~~$-$4.90~ \\ \ion{K}{i} & ~~$-$7.81 & ~~$-$7.67 & 1 & & ~~$-$6.96~ \\ \ion{Ca}{i} & ~~$-$6.98~$\pm$~0.05 & ~~$-$6.90~$\pm$~0.09 & 24 & & ~~$-$5.73~ \\ \ion{Ca}{ii} & ~~$-$6.71 & ~~$-$6.69 & 1 & & ~~$-$5.73~ \\ \ion{Sc}{ii} & ~$-$10.17~$\pm$~0.13 & ~$-$10.18~$\pm$~0.09 & 17 & & ~~$-$8.99~ \\ \ion{Ti}{i} & ~~$-$8.33~$\pm$~0.08 & ~~$-$8.32~$\pm$~0.07 & 22 & & ~~$-$7.14~ \\ \ion{Ti}{ii} & ~~$-$8.21~$\pm$~0.19 & ~~$-$8.22~$\pm$~0.13 & 56 & & ~~$-$7.14~ \\ \ion{V}{i} & ~~$-$9.64 & ~~$-$9.62 & 1 & & ~~$-$8.04~ \\ \ion{V}{ii} & ~~$-$9.22~$\pm$~0.09 & ~~$-$9.19~$\pm$~0.09 & 8 & & ~~$-$8.04~ \\ \ion{Cr}{i} & ~~$-$7.98~$\pm$~0.09 & ~~$-$7.94~$\pm$~0.09 & 18 & & ~~$-$6.40~ \\ \ion{Cr}{ii} & ~~$-$7.70~$\pm$~0.11 & ~~$-$7.66~$\pm$~0.10 & 27 & & ~~$-$6.40~ \\ \ion{Mn}{i} & ~~$-$8.47~$\pm$~0.15 & ~~$-$8.42~$\pm$~0.12 & 7 & & ~~$-$6.65~ \\ \ion{Fe}{i} & ~~$-$6.07~$\pm$~0.12 & ~~$-$6.03~$\pm$~0.11 &284 & & ~~$-$4.59~ \\ \ion{Fe}{ii} & ~~$-$5.93~$\pm$~0.13 & ~~$-$5.89~$\pm$~0.10 & 47 & & ~~$-$4.59~ \\ \ion{Co}{i} & ~~$-$8.22 & ~~$-$8.21 & 1 & & ~~$-$7.12~ \\ \ion{Ni}{i} & ~~$-$7.35~$\pm$~0.08 & ~~$-$7.33~$\pm$~0.08 & 38 & & ~~$-$5.81~ \\ \ion{Cu}{i} & ~~$-$9.74 & ~~$-$9.73 & 1 & & ~~$-$7.83~ \\ \ion{Zn}{i} & ~~$-$9.01~$\pm$~0.01 & ~~$-$8.99~$\pm$~0.01 & 2 & & ~~$-$7.44~ \\ \ion{Ga}{i} & ~$-$10.50 & ~$-$10.50 & 2 & UL/S & ~~$-$9.16~ \\ \ion{Rb}{i} & ~~$-$9.75 & ~~$-$9.75 & 1 & UL/S & ~~$-$9.44~ \\ \ion{Sr}{i} & ~$-$10.47 & ~$-$10.46 & 1 & & ~~$-$9.12~ \\ \ion{Sr}{ii} & ~$-$10.50 & ~$-$10.48 & 1 & & ~~$-$9.12~ \\ \ion{Y}{ii} & ~$-$11.31~$\pm$~0.09 & ~$-$11.30~$\pm$~0.09 & 10 & & ~~$-$9.83~ \\ \ion{Zr}{ii} & ~$-$10.56~$\pm$~0.07 & ~$-$10.53~$\pm$~0.06 & 4 & & ~~$-$9.45~ \\ \ion{Nb}{ii} & ~$-$11.50 & ~$-$11.50 & 1 & UL/S & ~$-$10.62~ \\ \ion{Mo}{i} & ~$-$10.50 & ~$-$10.50 & 1 & UL/S & ~$-$10.12~ \\ \ion{Pd}{i} & ~$-$11.00 & ~$-$11.00 & 1 & UL/S & ~$-$10.35~ \\ \ion{Ba}{ii} & ~$-$11.23~$\pm$~0.22 & ~$-$11.35~$\pm$~0.08 & 5 & & ~~$-$9.87~ \\ \ion{La}{ii} & ~$-$12.05~$\pm$~0.02 & ~$-$12.05~$\pm$~0.02 & 3 & & ~$-$10.91~ \\ \ion{Ce}{ii} & ~$-$11.74~$\pm$~0.08 & ~$-$11.73~$\pm$~0.08 & 8 & & ~$-$10.46~ \\ \ion{Pr}{ii} & ~$-$12.36~$\pm$~0.10 & ~$-$12.35~$\pm$~0.10 & 16 & S & ~$-$11.33~ \\ \ion{Nd}{ii} & ~$-$11.92 & ~$-$11.91 & 1 & & ~$-$10.59~ \\ \ion{Sm}{ii} & ~$-$12.00~$\pm$~0.07 & ~$-$12.00~$\pm$~0.07 & 10 & S & ~$-$11.03~ \\ \ion{Eu}{ii} & ~$-$12.57 & ~$-$12.55 & 1 & & ~$-$11.52~ \\ \ion{Gd}{ii} & ~$-$12.00~$\pm$~0.07 & ~$-$12.00~$\pm$~0.07 & 5 & S & ~$-$10.92~ \\ \ion{Tb}{ii} & ~$-$12.25~$\pm$~0.35 & ~$-$12.25~$\pm$~0.35 & 2 & S & ~$-$11.76~ \\ \ion{Dy}{ii} & ~$-$11.82~$\pm$~0.19 & ~$-$11.80~$\pm$~0.19 & 6 & S & ~$-$10.90~ \\ \ion{Ho}{ii} & ~$-$12.75~$\pm$~0.35 & ~$-$12.75~$\pm$~0.35 & 2 & S & ~$-$11.53~ \\ \ion{Er}{ii} & ~$-$11.61 & ~$-$11.60 & 1 & & ~$-$11.11~ \\ \ion{Tm}{ii} & ~$-$12.50 & ~$-$12.50 & 1 & UL/S & ~$-$12.04~ \\ \ion{Lu}{ii} & ~$-$12.83~$\pm$~0.15 & ~$-$12.83~$\pm$~0.15 & 3 & S & ~$-$11.98~ \\ \ion{Hf}{ii} & ~$-$11.50 & ~$-$11.50 & 1 & UL/S & ~$-$11.16~ \\ \ion{Pb}{i} & ~$-$11.00 & ~$-$11.00 & 1 & UL/S & ~$-$10.04~ \\ \ion{Th}{ii} & ~$-$12.90 & ~$-$12.90 & 1 & UL/S & ~$-$11.95~ \\ \noalign{\smallskip} \Teff &\multicolumn{4}{c}{6125~K} & 5777~K \\ \logg &\multicolumn{4}{c}{2.40~~~} & 4.44~~~~\\ \noalign{\smallskip} \vmic & 3.1~\kms & Depth dep. & \multicolumn{2}{c}{} & 0.875~~~~\\ \hline \end{tabular} \tablefoot{Error bar are estimates based on the internal scatter from the number of analysed lines, $n$. The third column gives the atmospheric abundances in case of a polynomial depth dependent microturbulence velocity. The last column gives the solar abundance values from Asplund et~al. (\cite{Asplund2005}). The column indicated as ``Remarks'' shows whether the given abundance value is an upper limit (UL) and/or was obtained with synthetic spectra (S).} \end{table}