The combined photometric and spectroscopic solutions for contact binaries BV DRA and BW DRA

Details The combined photometric and spectroscopic solutions for contact binaries BV DRA and BW DRA The combined photometric and spectroscopic solutions for contact binaries BV DRA and BW DRA

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92..666k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, Sept. 1986, p. 666-672.

Other

20

Binary Stars, Light Curve, Radial Velocity, Stellar Spectra, Metallicity, Stellar Evolution

Scientific paper

Extant light curves and new very precise radial-velocity curves of two W UMa systems (which form the visual binary ADS 9537) have been solved simultaneously using the Wilson-Devinney synthesis code. The absolute parameters of both systems suggest moderately advanced interior evolution and lowered metallicity; the kinematic properties of ADS 9537 are in agreement with the advanced global age. BV Dra and BW Dra are truly different and cannot be transformed into each other by conceivable evolutionary changes; thus, they do not represent different stages of the same evolutionary path.

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