Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sva....26...45l&link_type=abstract
(Astronomicheskii Zhurnal, vol. 59, Jan.-Feb. 1982, p. 73-86.) Soviet Astronomy, vol. 26, Jan.-Feb. 1982, p. 45-53. Translation
Astronomy and Astrophysics
Astronomy
4
Cepheid Variables, Companion Stars, Eclipsing Binary Stars, Light Curve, Wolf-Rayet Stars, Brightness Temperature, Stellar Evolution, Stellar Luminosity, Stellar Structure, Stellar Temperature
Scientific paper
Photoelectric B, V, R photometry of the eclipsing Wolf-Rayet binary CX Cep (WN 5 + O8 V, V = 12.1 m, P = 2.127d) is reported. Analysis of the integrated (broad band) light curve (effective wavelength of about 6000 A) yields physical parameters of the WN 5 star: core radius of 4.5 + or - 2.5 solar radii and core brightness temperature greater than 50,000 K, values nearly the same as those for the WN 5 component of the eclipsing WR binary V444 Cyg. The light curves of these two systems have an interpretation consistent with the theory for the evolution of massive close binaries.
Cherepashchuk Anatol M.
Lipunova N. A.
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