Super star clusters (M ecl > 105 M sun) are the largest stellar nurseries in our local Universe, containing hundreds of thousands to millions of young stars...
Supersonic turbulence in giant extragalactic HII regions
I discuss in this paper the more likely physical mechanisms that could provide the energy input for the supersonic motions observed in giant extragalactic HII...
TAURUS observations of the velocity field in the inner zone of NGC 6946
A two-dimensional velocity map in H-alpha of the inner 4 arc min zone of the Scd starburst galaxy NGC 6946 has been obtained using the TAURUS interferometric...
Testing evolutionary tracks of Pre-Main Sequence stars: the case of HD113449
Evolutionary tracks are of key importance for the understanding of star formation. Unfortunately, tracks published by various groups differ so that it is...
The (galaxy-wide) IMF in giant elliptical galaxies: from top to bottom
Recent evidence based independently on spectral line strengths and dynamical modelling point towards a non-universal stellar initial mass function (IMF)...
The ATLAS3D project - XXII. Low-efficiency star formation in early-type galaxies: hydrodynamic models and observations
We study the global efficiency of star formation in high-resolution hydrodynamical simulations of gas discs embedded in isolated early-type and spiral galaxies...
The bursty star formation history of the Fornax dwarf spheroidal galaxy revealed with the HST
We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in two central regions, characterized by unprecedented precision and...
We have studied the colors of the bulge component of 133 galaxies from the HST Groth Strip Survey (Groth et al. 1994), covering redshifts 0.3 z 1.0. We...
The centres of M83 and the Milky Way: opposite extremes of a common star formation cycle
In the centres of the Milky Way and M83, the global environmental properties thought to control star formation are very similar. However, M83's nuclear star...