Massive-star models require mass-dependent core overshoot (α_ov ≈ 0.18–0.45) to match the empirical TAMS, but still fail to explain the velocity dependence of the TAMS and the observed blue supergiant population.
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The IACOB project XIX. Revisiting massive-star evolution with empirical TAMS constraints: updated models, overshoot calibration, and the population of blue supergiants
Massive-star models require mass-dependent core overshoot (α_ov ≈ 0.18–0.45) to match the empirical TAMS, but still fail to explain the velocity dependence of the TAMS and the observed blue supergiant population.