A photometric and spectroscopic study of the early-type binary AH Cephei
Open Access
- 1 December 1986
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 223 (3) , 513-528
- https://doi.org/10.1093/mnras/223.3.513
Abstract
We present new Strömgren photometry and medium-dispersion spectroscopy of the early-type close binary AH Cephei. The masses and radii of the two components are found to be 18.1±0.9 and 15.9±0.8 solar masses and 6.7±0.2 and 6.2±0.2 solar radii respectively. Two possible values of the effective temperature of the primary component lead to two sets of possible luminosities for the components. Comparison with currently available evolutionary tracks for single stars suggests that this system could evolve into contact during its main-sequence lifetime.Keywords
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