Reddenings of FGK supergiants and classical Cepheids from spectroscopic data

V. V. Kovtyukh, C. Soubiran, R. E. Luck +4

Accurate and homogeneous atmospheric parameters (Teff, log (g), Vt, [Fe/H]) are derived for 74 FGK non-variable supergiants from high-resolution, high signal-to-noise ratio, echell…