NASA NTRS · 19900033263
Limit on overshooting from the convective core in upper main-sequence stars
Abstract
Overshooting of convective elements far beyond the classical Schwarzschild convective core boundary in theoretical models of massive ZAMS stars is found to lead to significant reductions of stellar luminosity and radius, provided that the temperature gradient in the overshoot region can be approximated by the adiabatic gradient. Comparison of these theoretical models with binary star data for the range of 5-15 solar masses indicates that the ratio of overshoot distance to pressure scale height is probably less than 1.5. This result apparently excludes any overshooting theories that predict very extended adiabatic convective cores.
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Stothers, Richard B., Chin, Chao-Wen. 1990-01-01. Limit on overshooting from the convective core in upper main-sequence stars. https://ntrs.nasa.gov/citations/19900033263
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