Accurate Metallicities for Very Metal-poor Stars from the Ca II Infrared Triplet
The Ca II H and K lines are among the few features available to infer the metallicity of extremely metal-poor stars from medium-resolution spectroscopy. Unfortunately, these lines can overlap with absorption produced in the intervening interstellar medium, introducing systematic errors in the derived metallicities. The strength of the Ca II
Martinez Osorio, Yeisson et al.
Fecha de publicación:
4
2022