Evolutionary status of the primary component of YZ Cassiopeiae

Details Evolutionary status of the primary component of YZ Cassiopeiae Evolutionary status of the primary component of YZ Cassiopeiae

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.153..213c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 153, no. 2, March 1989, p. 213-227.

Astronomy and Astrophysics

Astrophysics

5

A Stars, Eclipsing Binary Stars, Main Sequence Stars, Stellar Evolution, Hertzsprung-Russell Diagram, Hydrogen, Stellar Models, Stellar Rotation, Stellar Structure

Scientific paper

Model calculation results for rotating and nonrotating, 2.31-solar mass stars of population I composition have been compared with the observational parameters of the detached binary YZ Cassiopeiae binary component. Attention is given to the effects of rotation on the evolutionary behaviors of the model star through premain sequence evolution, as well as the zero-age main sequence. The evolutionary studies are then extended up to near-hydrogen-exhaustion stage, in order to ascertain a theoretical model that corresponds with the YZ Cassiopeiae primary component mass and radius; good agreement is noted between theoretical models and observational parameters.

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