Whether the stellar initial mass function (IMF) is universal or is instead sensitive to
environmental conditions is of critical importance: The IMF influences most observable …

The unprecedented quality of the astrometric measurements obtained with the ESA Gaia
spacecraft have initiated a revolution in Milky Way astronomy. Studies of star clusters in …

Strong constraints on the cosmic star formation history (SFH) have recently been established
using ultraviolet and far-infrared measurements, refining the results of numerous …

Galaxy formation models are now able to reproduce observed relations such as the relation
between galaxies' star formation rates (SFRs) and stellar masses (M*) and the stellar-mass …

Gamma-rays from radioactive 26Al (half-life∼ 7.2× 105 years) provide a 'snapshot'view of
continuing nucleosynthesis in the Galaxy. The Galaxy is relatively transparent to such γ-rays …

Using a complete sample of∼ 300 star-forming galaxies within 11 Mpc of the Milky Way, we
evaluate the consistency between star formation rates (SFRs) inferred from the far ultraviolet …

The current knowledge on the stellar IMF is documented. It is usually described as being
invariant, but evidence to the contrary has emerged: it appears to become top-heavy when …

We present uniformly measured star formation histories (SFHs) of 60 nearby (D≲ 4 Mpc)
dwarf galaxies based on color–magnitude diagrams of resolved stellar populations from …

Residual-gas expulsion after cluster formation has recently been shown to leave an imprint
in the low-mass present-day stellar mass function (PDMF) which allowed the estimation of …

We have carried out a large set of N-body simulations studying the effect of residual-gas
expulsion on the survival rate, and final properties of star clusters. We have varied the star …