This review examines the state-of-the-art knowledge of high-mass star and massive cluster
formation, gained from ambitious observational surveys, which acknowledges the multiscale …

Star formation is a multi-scale, multi-physics problem ranging from the size scale of
molecular clouds (∼ 10 ∼10 s pc) down to the size scales of dense prestellar cores (∼ 0.1 …

Aim. We have investigated the gas organization within the paradigmatic Integral Shape
Filament (ISF) in Orion in order to decipher whether or not all filaments are bundles of fibers …

Context. Star formation takes place in giant molecular clouds, resulting in mass-segregated
young stellar clusters composed of Sun-like stars, brown dwarfs, and massive O-type (50 …

We present dynamical properties of 294 cores embedded in twelve IRDCs observed as part
of the ASHES Survey. Protostellar cores have higher gas masses, surface densities, column …

The density structure of the interstellar medium determines where stars form and release
energy, momentum and heavy elements, driving galaxy evolution,,–. Density variations are …

Context. High-mass stars and star clusters commonly form within hub-filament systems.
Monoceros R2 (hereafter Mon R2), at a distance of 830 pc, harbors one of the closest of …

Are the initial conditions for clustered star formation the same as for non-clustered star
formation? To investigate the initial gas properties in young proto-clusters we carried out a …

Context. Dense molecular filaments are ubiquituous in the interstellar medium, yet their
internal physical conditions and the role of gravity, turbulence, the magnetic field, radiation …

Context. Core accretion models of massive star formation require the existence of massive,
starless cores within molecular clouds. Yet, only a small number of candidates for such truly …