Abstract
The Wolf-Rayet star HD 5980, which is probably associated with the bright HII region NGC 346 of the Small Magellanic Cloud, was found to be an eclipsing binary by Hoffmann, Stift and Moffat (1978). Breysacher and Perrier (1980) determined the orbital period, P=19.266±0.003d, of the system whose light curve reveals a strongly eccentric orbit (e=0.47 for i=80º). The behaviour of the light curve outside the eclipses shows that we are dealing with a rather complex binary system. An analysis of the spectroscopic data is presented here.
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References
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Breysacher, J., Moffat, A.F.J., Niemelä, V.S. (1982). The Wolf-Rayet Eclipsing Binary HD 5980 in the Small Magellanic Cloud. In: De Loore, C.W.H., Willis, A.J. (eds) Wolf-Rayet Stars: Observations, Physics, Evolution. International Astronomical Union/Union Astronomique Internationale, vol 99. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7910-9_43
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DOI: https://doi.org/10.1007/978-94-009-7910-9_43
Publisher Name: Springer, Dordrecht
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