Adaptive optics for high-resolution imaging
Adaptive optics (AO) is a technique that corrects for optical aberrations. It was originally
proposed to correct for the blurring effect of atmospheric turbulence on images in ground …
proposed to correct for the blurring effect of atmospheric turbulence on images in ground …
Stellar and substellar companions from Gaia EDR3-Proper-motion anomaly and resolved common proper-motion pairs
P Kervella, F Arenou, F Thévenin - Astronomy & Astrophysics, 2022 - aanda.org
Context. The multiplicity fraction of stars, down to the substellar regime, is a parameter of
fundamental importance for stellar formation, evolution, and planetology. The census of …
fundamental importance for stellar formation, evolution, and planetology. The census of …
The SPHERE infrared survey for exoplanets (SHINE)-III. The demographics of young giant exoplanets below 300 au with SPHERE
The SpHere INfrared Exoplanet (SHINE) project is a 500-star survey performed with
SPHERE on the Very Large Telescope for the purpose of directly detecting new substellar …
SPHERE on the Very Large Telescope for the purpose of directly detecting new substellar …
Wind-driven halo in high-contrast images-I. Analysis of the focal-plane images of SPHERE
Context. The wind-driven halo is a feature that is observed in images that were delivered by
the latest generation of ground-based instruments that are equipped with an extreme …
the latest generation of ground-based instruments that are equipped with an extreme …
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems I: High-contrast Imaging of the Exoplanet HIP 65426 b from 2 to 16 μm
Abstract We present JWST Early Release Science coronagraphic observations of the super-
Jupiter exoplanet, HIP 65426b, with the Near-Infrared Camera (NIRCam) from 2 to 5 μm …
Jupiter exoplanet, HIP 65426b, with the Near-Infrared Camera (NIRCam) from 2 to 5 μm …
A dusty veil shading Betelgeuse during its Great Dimming
M Montargès, E Cannon, E Lagadec, A de Koter… - Nature, 2021 - nature.com
Red supergiants are the most common final evolutionary stage of stars that have initial
masses between 8 and 35 times that of the Sun. During this stage, which lasts roughly …
masses between 8 and 35 times that of the Sun. During this stage, which lasts roughly …
Probing inner and outer disk misalignments in transition disks-Constraints from VLTI/GRAVITY and ALMA observations
AJ Bohn, M Benisty, K Perraut, N van Der Marel… - Astronomy & …, 2022 - aanda.org
Context. Transition disks are protoplanetary disks with dust-depleted cavities, possibly
indicating substantial clearing of their dust content by a massive companion. For several …
indicating substantial clearing of their dust content by a massive companion. For several …
AF Lep b: The lowest-mass planet detected by coupling astrometric and direct imaging data
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 …
the star AF Lep, which presents a significant proper-motion anomaly (PMa) signal obtained …
Constraining the Nature of the PDS 70 Protoplanets with VLTI/GRAVITY∗
We present K-band interferometric observations of the PDS 70 protoplanets along with their
host star using VLTI/GRAVITY. We obtained K-band spectra and 100 μas precision …
host star using VLTI/GRAVITY. We obtained K-band spectra and 100 μas precision …
Direct imaging discovery of a super-Jovian around the young Sun-like star AF Leporis
Context. Expanding the sample of directly imaged companions to nearby, young stars that
are amenable to detailed astrometric and spectroscopic studies is critical for the continued …
are amenable to detailed astrometric and spectroscopic studies is critical for the continued …