Aims. Using the direct-imaging technique, we searched for low-mass companions around
the star AF Lep, which presents a significant proper-motion anomaly (PMa) signal obtained …

Context. The specific location from where molecules emit in a protoplanetary disk depends
on the system properties. Therefore, directly constraining the emitting regions radially …

We present the direct-imaging discovery of a giant planet orbiting the young star AF Lep, a
1.2 M⊙ member of the 24±3 Myr β Pic moving group. AF Lep was observed as part of our …

To determine the origin of the spiral structure observed in the dust continuum emission of
Elias 2–27 we analyze multiwavelength continuum ALMA data with a resolution of∼ 0 farcs …

We know little about the outermost exoplanets in planetary systems because our detection
methods are insensitive to moderate-mass planets on wide orbits. However, debris discs …

Context. Cyanide (CN) emission is expected to originate in the upper layers of
protoplanetary disks, tracing UV-irradiated regions. This hypothesis, however, has been …

Context. Planet formation is a frequent process, but little observational constraints exist
about the mechanisms involved, especially for giant planets at large separation. The NaCo …

Aims. We aim to detect planetary companions to young stars with debris disks via the radial
velocity method. Methods. We observed HD 114082 during April 2018–August 2022 as one …

Radial substructure in the form of rings and gaps has been shown to be ubiquitous among
protoplanetary discs. This could be the case in exo-Kuiper belts as well, and evidence for …

Context. Circumstellar disks play an essential role in the outcomes of planet formation. Disks
do not evolve in isolation, as about half of solar-type stars were born in binary or multiple …