Non-LTE line formation of Fe in late-type stars โ III. 3D non-LTE analysis of metal-poor stars
Non-LTE line formation of Fe in late-type stars โ III. 3D non-LTE analysis of metal-poor stars
As one of the most important elements in astronomy, iron abundance determinations need to be as accurate as possible. We investigate the accuracy of spectroscopic iron abundance analyses using archetypal metal-poor stars. We perform detailed 3D non-LTE radiative transfer calculations based on 3D hydrodynamic stagger model atmospheres, and employ a โฆ