27 citations · 79 across the 7 of their papers we have counts for
7 papers
On the origin of the rotation of massive stars
André Oliva, Facundo D. Moyano, Luca Sciarini +3
We explore the origin of the rotation rates of massive stars. Contrary to their low-mass siblings, most massive stars do not have detectable magnetic fields, so that star-disk inte…
From Fragments to Flares: Migration, Tidal Disruption, and Observable Bursts in Massive Protostellar Disks
Vardan Elbakyan, Rolf Kuiper, André Oliva +4
We investigate how resolving the inner few astronomical units of a massive protostellar disk affects the migration, disruption, and accretion signatures of an inward-moving fragmen…
Detection of a septuple stellar system in formation via disk fragmentation
Shanghuo Li, Henrik Beuther, André Oliva +15
Stellar multiple systems play a pivotal role in cluster dynamics and stellar evolution, leading to intense astronomical phenomena like X-ray binaries, gamma-ray bursts, Type Ia sup…
The magnetic field of a magnetohydrodynamic disk wind: Water maser observations and simulations
Luca Moscadelli, André Oliva, Gabriele Surcis +3
Our goal is to measure and model the magnetic field distribution in the disk wind of the young stellar object (YSO) IRAS 21078+5211. We performed sensitive global Very Long Baselin…
Modeling disks and magnetic outflows around a forming massive star: I. Investigating the two layer-structure of the accretion disk
André Oliva, Rolf Kuiper
Like their lower mass siblings, massive protostars can be expected to: a) be surrounded by circumstellar disks and b) launch magnetically-driven jets and outflows. The disk formati…
Modeling disks and magnetic outflows around a forming massive star: II. Dynamics of jets from massive protostars
André Oliva, Rolf Kuiper
Forming massive stars launch outflows of magnetic origin, which in fact serve as a marker for finding sites of massive star formation. However, both the theoretical and observation…
Snapshot of a magnetohydrodynamic disk wind traced by water maser observations
Luca Moscadelli, Alberto Sanna, Henrik Beuther +2
The formation of astrophysical objects of different nature and size, from black holes to gaseous giant planets, involves a disk-jet system, where the disk drives the mass accretion…