Observational advances over the last decade have enabled high-resolution, interferometric
studies of forming multiple systems, statistical surveys of multiplicity in star-forming regions …

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 …

We present optical spectroscopy observations of 145 high-mass pre-main-sequence
candidates from the catalog of Vioque et al. 2020 From these, we provide evidence for the …

Context. The young massive-star-forming region M17 contains optically visible massive pre-
main-sequence stars that are surrounded by circumstellar disks. Such disks are expected to …

Context. The presence of short-period (< 10 days) planets around main sequence (MS) stars
has been associated either with the dust-destruction region or with the magnetospheric gas …

Context. Recently much progress has been made in probing the embedded stages of
massive star formation, pointing to formation scenarios that are reminiscent of a scaled-up …

Context. Spectroscopic multiplicity surveys of O stars in young clusters and OB associations
have revealed that a large portion (∼ 70%) of these massive stars (M i> 15 M⊙) belong to …

Context. Given the high incidence of binaries among mature field massive stars, it is clear
that multiplicity is an inevitable outcome of high-mass star formation. Understanding how …

We present high-resolution (≲ 160 au) Atacama Large Millimeter/submillimeter Array
(ALMA) 1.3 mm observations of the high-mass prestellar core candidate G11. 92− 0.61 …

Context. The inner parts of the hot discs surrounding massive young stellar objects (MYSOs)
are still barely explored due to observational limitations in terms of angular resolution …