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 mass of a star is the most fundamental parameter for its structure, evolution, and final
fate. It is particularly important for any kind of stellar archaeology and characterization of …

Context. The chemical composition of the Sun is a fundamental yardstick in astronomy,
relative to which essentially all cosmic objects are referenced. As such, having accurate …

The Sun serves as a natural reference for the modelling of the various physical processes at
work in stellar interiors. Helioseismology results, which inform us on the characterization of …

Most stars host convection zones in which heat is transported directly by fluid motion, but the
behavior of convective boundaries is not well-understood. Here, we present 3D numerical …

We present an empirical model of age-dependent photospheric lithium depletion, calibrated
using a large homogeneously analysed sample of 6200 stars in 52 open clusters, with ages …

Stellar members of binary systems are formed from the same material, and therefore they
should be chemically identical. However, recent studies have unveiled chemical differences …

The lithium present in the photospheres of solar-type stars is transported to the inner parts
by convection, reaching regions even somewhat below the convection zone, by non …

Stellar evolution models calculate convective boundaries using either the Schwarzschild or
Ledoux criterion, but confusion remains regarding which criterion to use. Here we present a …

Spectroscopic equilibrium allows us to obtain precise stellar parameters in Sun-like stars. It
relies on the assumption of the iron excitation and ionization equilibrium. However, several …