Light curve of the eclipsing binary system CX Cephei and the properties of the Wolf--Rayet component
Journal Article
·
· Sov. Astron. (Engl. Transl.); (United States)
OSTI ID:6636555
Photoelectric B, V, R photometry of the eclipsing Wolf--Rayet binary CX Cep (WN 5+O8 V, Vroughly-equal12/sup m/.1, P = 2/sup d/.127) is reported. Analysis of the integrated (broad band) light curve (lambda/sub eff/roughly-equal6000 A) yields physical parameters of the WN 5 star: core radius r/sub 0/ = 4.5 +- 2.5 R/sub sun/ and core brightness temperature T/sub b/>50 000 /sup 0/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.
- Research Organization:
- Shternberg Astronomical Institute, Moscow
- OSTI ID:
- 6636555
- Journal Information:
- Sov. Astron. (Engl. Transl.); (United States), Journal Name: Sov. Astron. (Engl. Transl.); (United States) Vol. 26:1; ISSN SAAJA
- Country of Publication:
- United States
- Language:
- English
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