Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237..285h&link_type=abstract
Astrophysical Journal, Part 1, vol. 237, Apr. 1, 1980, p. 285-289.
Astronomy and Astrophysics
Astrophysics
33
Hot Stars, Iue, Magellanic Clouds, Supergiant Stars, Ultraviolet Spectroscopy, Interstellar Extinction, Line Spectra, Spectral Energy Distribution, Spectrum Analysis, Stellar Luminosity, Stellar Temperature, Stellar Winds
Scientific paper
Low dispersion IUE spectra of seven hot supergiants in the Large Magellanic Cloud and one in the Small Magellanic Cloud are presented. Stellar winds are present in all the stars, but the resonance lines have weak or no emission and probably have lower terminal velocities than galactic counterparts. Spectral energy distributions are used to derive effective temperature, luminosities, and interstellar extinction values. These are in reasonable agreement with ground-based estimates. Some peculiarities are noted and compared with galactic stars. Line features in the spectra are discussed, including several unusual emission lines. The peculiar star R99 appears to be very luminous (bolometric magnitude of about -11.4) and reddened.
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