Evolutionary stellar models with core overshooting and mass loss - Apsidal motion constants

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Apsides, Stellar Cores, Stellar Evolution, Stellar Mass Ejection, Stellar Models, Eclipsing Binary Stars, Helium, Hertzsprung-Russell Diagram, Stellar Composition, Stellar Structure

Scientific paper

A new grid of evolutionary stellar models with core overshooting and mass loss is presented. In addition to these two physical mechanisms, new opacity tables from Los Alamos Opacity Library were used; the chemical composition was adopted to be (X,Z) = (0.70, 0.02); and the mixing-length parameter was fixed to 2.0. The computed evolutionary tracks cover the mass range from 1.12 up to 25 solar mass. Models with about 300 layers inside the stellar configuration were calculated from the ZAMS until the ignition of He in the core.

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