Characteristics of the Wolf-Rayet star in the eclipsing system CQ Cep
Description
The angle of inclination of the orbit (i = 650 +- 10) is found from an analysis of light curves of the system CQ Cep (WN 7+07, Vapprox. =8/sup m/.9, papprox. =1/sup d/.641) in U, V, and R filters. The parameter L3, characterizing the relative luminosity of the ''uneclipsed'' common envelope in the CQ Cep system, is determined: L3(U)approx. =0; L3(V) = 0.10; L3(R) = 0.29. The radius of the core of the WN 7 star is obtained, r0 = (11 +- 1)R/sub sun/. The brightness and color temperatures (T/sub b/ and T/sub c/) of the core are found: T/sub b/> or approx. =50 000 0K, T/sub c/roughly-equal50 000 0K. The mass of the WN 7 star is approx.31 M/sub sun/. On the Hertzsprung-Russell diagram the core of the WN 7 star occupies a position intermediate between the main sequence and the sequence of homogeneous helium stars
Additional details
Publishing Information
- Journal Title
- Sov. Astron. (Engl. Transl.)
- Journal Volume
- 26
- Journal Issue
- 5
- Series
- Sov. Astron. (Engl. Transl.).
- Journal Page Range
- 569-575
- ISSN
- 0038-5301
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14781610
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BINARY STARS; BRIGHTNESS; COLOR; HERTZSPRUNG-RUSSELL DIAGRAM; LUMINOSITY; MASS; ORBITS; PHOTOMETRY; SIZE; TEMPERATURE MEASUREMENT; VARIABLE STARS; WOLF-RAYET STARS
- Descriptors DEC
- DIAGRAMS; INFORMATION; MAIN SEQUENCE STARS; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; STARS
Optional Information
- Notes
- Cover-to-cover translation of Astronomicheskij Zhurnal (USSR).