\begin{table}%t1 \caption{\label{cap5:tablelines}Atomic parameters of the spectral lines.} \par %\centering \par \begin{tabular}{@{}c c c c c c c c c c@{}} \hline \hline \noalign{\smallskip} I{\scshape on} & $\lambda$ (nm) & $\chi_{{\rm low}}$ & $\log (gf)$ & T{\scshape ransition }& $\alpha$ & $\sigma/a_0^2$ & $g_{\rm eff}$\\[2pt] \hline \ion{Fe}{i} & 630.1501 & 3.654 & $-0.75$ & $\rm 5P_2{-}5D_2$ & 0.243 & 840.5 & 1.67 \\ \ion{Fe}{i} & 630.2494 & 3.686 & $-1.236$ & $\rm 5P_1{-}5D_0$ & 0.240 & 856.8 & 2.5 \\ \hline \end{tabular} \tablefoot {$\lambda$ stands for the central wavelength of the transition, $\chi_{{\rm low}}$ is the excitation potential of the lower atomic level in eV, $\log gf$ represents for the multiplicity of the lower level times the oscillator strength, $\alpha$ and $\sigma$ are the collisional broadening parameters in the quantum theory of Anstee et~al. (in~units of Bohr's radius,~$a_0$), and~$g_{\rm eff}$ is the effective Land\'e factor of the transition.} \end{table}