Star formation lies at the center of a web of processes that drive cosmic evolution:
generation of radiant energy, synthesis of elements, formation of planets, and development …

Unbound young stellar systems, the loose ensembles of physically related young bright
stars, trace the typical regions of recent star formation in galaxies. Their morphologies vary …

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 study the scaling relations between gas-phase metallicity, stellar mass surface density
(Σ*), star formation rate surface density (ΣSFR), and molecular gas surface density () in local …

We study relations between stellar mass, star formation and gas-phase metallicity in a
sample of 177 071 unique emission line galaxies from the Sloan Digital Sky Survey Data …

We study how runaway stellar collisions in high-redshift, metal-poor star clusters form very
massive stars (VMSs) that can directly collapse to intermediate-mass black holes (IMBHs) …

We present observational evidence of a correlation between the high-mass slope of the
stellar initial mass function (IMF) in young star clusters and their stellar surface density, σ …

Observations of molecular clouds in metal-poor environments typically find that they have
much higher star formation rates than one would expect based on their observed CO …

We study the causes of the reported mass-dependence in the slope of the SFR− M∗
relation, the so-called main sequence of star-forming galaxies, and discuss its implication on …

Context. Tracing the molecular gas-phase in low-mass star-forming galaxies becomes
extremely challenging due to significant UV photo-dissociation of CO molecules in their low …