Advances in optical/infrared interferometry

F Eisenhauer, JD Monnier… - Annual Review of …, 2023 - annualreviews.org
After decades of fast-paced technical advances, optical/infrared (O/IR) interferometry has
seen a revolution in recent years:▪ The GRAVITY instrument at the Very Large Telescope …

Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e

P Mollière, T Stolker, S Lacour, G Otten… - Astronomy & …, 2020 - aanda.org
Context. Clouds are ubiquitous in exoplanet atmospheres and they represent a challenge
for the model interpretation of their spectra. When generating a large number of model …

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 …

Direct confirmation of the radial-velocity planet β Pictoris c

M Nowak, S Lacour, AM Lagrange, P Rubini… - Astronomy & …, 2020 - aanda.org
Context. Methods used to detect giant exoplanets can be broadly divided into two
categories: indirect and direct. Indirect methods are more sensitive to planets with a small …

Constraining the Nature of the PDS 70 Protoplanets with VLTI/GRAVITY∗

JJ Wang, A Vigan, S Lacour, M Nowak… - The Astronomical …, 2021 - iopscience.iop.org
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 …

Peering into the formation history of β Pictoris b with VLTI/GRAVITY long-baseline interferometry

M Nowak, S Lacour, P Mollière, J Wang… - Astronomy & …, 2020 - aanda.org
Context. β Pictoris is arguably one of the most studied stellar systems outside of our own.
Some 30 yr of observations have revealed a highly-structured circumstellar disk, with rings …

The mass of β Pictoris c from β Pictoris b orbital motion

S Lacour, JJ Wang, L Rodet, M Nowak… - Astronomy & …, 2021 - aanda.org
Aims. We aim to demonstrate that the presence and mass of an exoplanet can now be
effectively derived from the astrometry of another exoplanet. Methods. We combined …

MATISSE, the VLTI mid-infrared imaging spectro-interferometer

B Lopez, S Lagarde, RG Petrov, W Jaffe… - Astronomy & …, 2022 - aanda.org
Context. Optical interferometry is at a key development stage. The Very Large Telescope
Interferometer (VLTI) has established a stable, robust infrastructure for long-baseline …

Direct discovery of the inner exoplanet in the HD 206893 system-Evidence for deuterium burning in a planetary-mass companion

S Hinkley, S Lacour, GD Marleau, AM Lagrange… - Astronomy & …, 2023 - aanda.org
Aims. HD 206893 is a nearby debris disk star that hosts a previously identified brown dwarf
companion with an orbital separation of∼ 10 au. Long-term precise radial velocity (RV) …

MIRC-X: a highly sensitive six-telescope interferometric imager at the CHARA array

N Anugu, JB Le Bouquin, JD Monnier… - The Astronomical …, 2020 - iopscience.iop.org
Abstract Michigan InfraRed Combiner-eXeter (MIRC-X) is a new highly sensitive six-
telescope interferometric imager installed at the CHARA Array that provides an angular …