Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..370a&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 10, May 1984, p. 370-376) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, May-June
Astronomy and Astrophysics
Astronomy
1
Astronomical Photometry, Eclipsing Binary Stars, Relativistic Effects, Wolf-Rayet Stars, Companion Stars, Electrophotometry, Light Curve
Scientific paper
New photoelectric observations of the WN 6 star HD 191765 are reported which provide an improved period for its light variation. The results indicate that the light curve includes a secondary minimum roughly 0.015 m deep. It is concluded that the oboject is a close binary system consisting of the WN 6 star with mass 25-40 solar masses and radius of 7-8 solar radii and a compact companion with radius roughly 1.7 solar radius, bolometric luminosity over 2 x 10 to the 36th erg/sec, and mass of 1-3 solar masses. The companion is either a relativistic star accreting stellar wind from the WN 6 component or, less likely, a helium star.
Antokhin Igor I.
Cherepashchuk Anatol M.
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