ULTRAVIOLET STUDIES OF THE MAGELLANIC CLOUDS .1. INTER-STELLAR LINES IN THE SPECTRA OF FD70 AND SK-71-45

High dispersion ultraviolet spectra of the two LMC members, HD 38282 (FD70) and HD269676 (SK-71-45), have been obtained with WE. Velocity profiles have been presented of the numerous interstellar lines observed in the spectra of these stars and associated with the absorption in both the Galaxy and the LMC. In both lines-of-sight well defined interstellar components are observed at heliocentric velocity shifts of 0, +70, +150 and 200—300 km s-1, similar to those values reported for the interstellar Caiifc lines observed in the spectrum of the LMC star HD 38268 in 30 Doradusby Blades & Meaburn. The extended blue asymmetric absorption observed in the LMC interstellar Cank line absorption is also observed in both ultraviolet interstellar line profiles in FD70 and SK-71-45, although the latter star is far removed from the 30 Doradus region. This result favours an origin for these features associated with gas in a halo around the LMC as proposed by de Boer & Savage. © Royal Astronomical Society.