New photoelectric observations of the Wolf-Rayet star HD 5980 in the Small Magellanic Cloud

Details New photoelectric observations of the Wolf-Rayet star HD 5980 in the Small Magellanic Cloud New photoelectric observations of the Wolf-Rayet star HD 5980 in the Small Magellanic Cloud

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....90..207b&link_type=abstract

Astronomy and Astrophysics, vol. 90, no. 1-2, Oct. 1980, p. 207-209.

Astronomy and Astrophysics

Astrophysics

34

Astronomical Photometry, Eclipsing Binary Stars, Electrophotometry, Hot Stars, Magellanic Clouds, Wolf-Rayet Stars, Light Curve, Stellar Luminosity, Stellar Rotation, Telescopes, Ubv Spectra

Scientific paper

New photoelectric observations of the eclipsing Wolf-Rayet binary HD 5980 in the Small Magellanic Cloud are presented. The phase φ = 0.36 of the secondary minimum indicates a strong eccentric orbit (e = 0.47 for i = 80°). The period of 25.56 d determined by Hoffmann et al. (1978) is not confirmed, P = 19.266±0.003 d is the new value found. A qualitative interpretation of the light curve is proposed in prelude to a further detailed analysis of the system.

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