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Current problems in stellar evolution
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Current problems in stellar evolution
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The theory of stellar evolution plays a central role in astrophysics as stellar models are used to infer properties for Galactic and Extragalactic stellar populations as well as exoplanetary systems. However, despite decades of experience, stellar models still face major issues linked to transport processes of chemicals and angular momentum. This review will focus on some of the processes responsible for the most sizable uncertainties in stellar models such as for example convection, rotation and mass loss. The presentation will discuss their implementation, their impact on theoretical predictions and how various observational constraints can help us gain insight on the physics inside stars and face the current challenges of the theory of stellar evolution.
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Cited by 1 Pith paper
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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.
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