Improving low-mass star models using 3D hydrodynamic simulations and asteroseismology

恒星是涉及复杂现象(对流、自转、磁场、双星相互作用)的多维(多维)物体。虽然3D流体动力学模拟不能跟踪恒星的整个演化，但它们最终可以指导和约束下一代一维恒星演化模型(对流边界可以用分辨率&gt；=1024^3来解决)。这是非常必要的，因为目前的一维模型的预测能力受到三维现象的不确定的一维处方的削弱，特别是对流边界混合(CBM)。同时，星震学可以从观测方面对煤层气进行约束。该博士的目标是在一维恒星演化模型中开发和实施新的煤层气处方，并使用恒星地震观测来检验它们的预测。

Stars are multi-dimensional (MultiD) objects involving complex phenomena (convection, rotation, magnetic fields, binary interactions). Although 3D hydrodynamic simulations cannot follow the entire evolution of stars, they can finally guide and constrain next-generation 1D stellar evolution models (convective boundaries can be resolved with resolutions >= 1024^3). This is crucially needed because the predictive power of current 1D models is crippled by uncertain 1D prescriptions of 3D phenomena, in particular for convective boundary mixing (CBM). Simultaneously, Asteroseismology can constrain CBM from the observational side. The goal of this PhD is to develop and implement new prescriptions for CBM in 1D stellar evolution models and test their predictions using asteroseismic observations.