The evolutionary state of the detached eclipsing binary YZ CAS

Details The evolutionary state of the detached eclipsing binary YZ CAS The evolutionary state of the detached eclipsing binary YZ CAS

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...135..397d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 135, no. 2, June 1984, p. 397-400.

Astronomy and Astrophysics

Astrophysics

3

Eclipsing Binary Stars, Metallicity, Stellar Evolution, Cassiopeia Constellation, Chemical Composition, Stellar Models, Stellar Rotation

Scientific paper

Within the framework of evolutionary model computations the age and
chemical composition of YZ Cas are derived: age = 4.5E8 yr, X = 0.65 and
Z = 0.015, while the photospheric value Z = 0.030. Element diffusion
causing the observed metallicity of the primary is not obstructed by
tidal evolution.

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