Ultraviolet interstellar extinction in the Large Magellanic Cloud using observations with the international ultraviolet explorer.

Abstract

Ten early-type supergiants in the Large Magellanic Cloud (LMC) have been observed with the International Ultraviolet Explorer (IUE). The spectra (1150-3200 A) are shown, and their photometric properties are discussed. It is confirmed that the LMC interstellar extinction law for these stars deviates significantly from the average galactic law in the sense that the 2200 A feature is deficient in strength and that, in the far-ultraviolet (wavelength less than 2000 A), the observed LMC extinction law is significantly above the galactic curve.