LMC Blue Supergiant Stars and the Calibration of the Flux-weighted Gravity–Luminosity Relationship
LMC Blue Supergiant Stars and the Calibration of the Flux-weighted Gravity–Luminosity Relationship
High quality spectra of 90 blue supergiant stars in the Large Magellanic Cloud are analyzed with respect to effective temperature, gravity, metallicity, reddening, extinction and extinction law. An average metallicity, based on Fe and Mg abundances, relative to the Sun of [Z] = -0.35 +/- 0.09 dex is obtained. The …