Evolutionary stellar models using Rogers and Iglesias opacities, with particular attention to internal structure constants

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Eclipsing Binary Stars, Stellar Evolution, Stellar Interiors, Stellar Models, Abundance, Metallicity, Stellar Composition

Scientific paper

The present stellar evolutionary models, which include internal structure constants, employ the most recent input physics and use the Rogers and Iglesias (1992) opacities, in conjunction with the recent lower-temperature computations of Alexander (1992). The primary changes those obtained concern the solar He content and mixing-length parameter. The new models exhibit a general tendency to be cooler and more centrally concentrated in mass than previous computation results for masses where apsidal motion is observed.

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