Based on sub-arcsecond Atacama Large Millimeter/submillimeter Array (ALMA) and
Submillimeter Array (SMA) 1.3 mm continuum images of the massive protocluster NGC …

We present radiation hydrodynamic simulations of the collapse of massive pre-stellar cores.
We treat frequency-dependent radiative feedback from stellar evolution and accretion …

We report the first three-dimensional radiation magnetohydrodynamic (RMHD) simulations
of protostellar collapse with and without Ohmic dissipation. We take into account many …

The most massive stars can form via standard disk accretion—despite the radiation pressure
generated—due to the fact that the massive accretion disk yields a strong anisotropy in the …

Massive stars disproportionately influence their surroundings. How they form has only
started to become clear recently through radiation gas dynamical simulations. However, until …

Accretion-driven luminosity outbursts are a vivid manifestation of variable mass accretion on
to protostars. They are known as the so-called FU Orionis phenomenon in the context of low …

We present high-resolution (∼ 300 au) Atacama Large Millimeter/submillimeter Array
observations of the massive young stellar object G11. 92–0.61 MM 1. We resolve the …

Context. We exploit the increased sensitivity of the recently installed adaptive optics SOUL at
the LBT to obtain new high-spatial-resolution near-infrared images of the massive young …

Massive stars play an important role in many areas of astrophysics, but numerous details
regarding their formation remain unclear. In this paper we present and analyse high …

The origin of the broad line region (BLR) in active galaxies remains unknown. It seems to be
related to the underlying accretion disk, but an efficient mechanism is required to raise the …