Convective Overshooting in Stellar Interior Models

作者：G. Shaviv, E. E. Salpeter · 发表于：The Astrophysical Journal · 年份：1973 · DOI：10.1086/152318 · 被引用次数：179 · 研究领域：Stellar, planetary, and galactic studies、Solar and Space Plasma Dynamics、Advanced Thermodynamics and Statistical Mechanics

The question of overshooting from interior convective cores in stellar models is examined in the framework of a simplified nonlocal mixing-length model for convection. The most important results are (a) a finite nonnegligible overshoot is obtained for parameter combinations typical of stellar convective cores; (b) a finite nonzero overshoot is obtained even in the limit of adiabatic convection (achieved when convective speeds tend to zero). A general thermodynamic argument is presented to show that the limiting results are not model dependent. Subject headings: convection - interiors, stellar