The convective envelopes of solar-type stars and the convective cores of intermediate-and
high-mass stars share boundaries with stable radiative zones. Through a host of processes …

The cores of main sequence intermediate-and high-mass stars are convective. Mixing at the
radiative–convective boundary, waves excited by the convection, and magnetic fields …

We present the first 3D hydrodynamics simulations of the excitation and propagation of
internal gravity waves (IGWs) in the radiative interiors of low-mass stars on the red giant …

Context. The transition between convective and radiative stellar regions is still not fully
understood. This currently leads to a poor modelling of the transport of energy and chemical …

This thesis includes three research papers about the convective dynamics of fluids with
composition gradients, motivated by how chemical elements are transported and mixed …

Giant planets like Jupiter, which undergo strong convection in their gaseous envelopes,
might have composition gradients in their interiors. As the planet cools in time from its …