Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..734m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 734-746. Research supported by NSERC and DOE.
Astronomy and Astrophysics
Astrophysics
17
Binary Stars, Light Curve, Magellanic Clouds, Stellar Spectra, Wolf-Rayet Stars, Iue, Stellar Systems, Ultraviolet Spectra, Visible Spectrum
Scientific paper
The results of IUE observations of three SMC W-R binary systems at various orbital phases are presented. Selective atmospheric eclipse effects are evident in HD 5980 (WN 4 + O7 I:) and Sk 188 (W0 4 + O4 V), and are very weak or absent in Sk 108 (WN 3 + O6.5 I:). The difference in heavy-metal content between the SMC and Galactic objects is especially manifest in the lack of atmospheric eclipse effects due to a clustering of Fe V and Fe VI lines in the wavelength range 1360-1470 A in HD 5980.
Auer Lawrence H.
Koenigsberger Gloria
Moffat Anthony F. J.
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