Iron abundances from optical Fe <scp>iii</scp> absorption lines in B-type stellar spectra
Iron abundances from optical Fe <scp>iii</scp> absorption lines in B-type stellar spectra
Abstract The role of optical Fe iii absorption lines in B-type stars as iron abundance diagnostics is considered. To date, ultraviolet Fe lines have been widely used in B-type stars, although line blending can severely hinder their diagnostic power. Using optical spectra, covering a wavelength range ∼3560–9200 Å, a sample …