The SPHERE infrared survey for exoplanets (SHINE)-III. The demographics of young giant exoplanets below 300 au with SPHERE

A Vigan, C Fontanive, M Meyer, B Biller… - Astronomy & …, 2021 - aanda.org
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 …

AF Lep b: The lowest-mass planet detected by coupling astrometric and direct imaging data

D Mesa, R Gratton, P Kervella, M Bonavita… - Astronomy & …, 2023 - aanda.org
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 …

[HTML][HTML] Direct imaging discovery of a super-Jovian around the young Sun-like star AF Leporis

RJ De Rosa, EL Nielsen, Z Wahhaj, JB Ruffio… - Astronomy & …, 2023 - aanda.org
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 …

Results from The COPAINS Pilot Survey: four new BDs and a high companion detection rate for accelerating stars

M Bonavita, C Fontanive, R Gratton… - Monthly Notices of …, 2022 - academic.oup.com
The last decade of direct imaging (DI) searches for sub-stellar companions has uncovered a
widely diverse sample that challenges the current formation models, while highlighting the …

[HTML][HTML] Astrometric accelerations as dynamical beacons: discovery and characterization of HIP 21152 B, the first T-dwarf companion in the Hyades

K Franson, BP Bowler, M Bonavita… - The Astronomical …, 2023 - iopscience.iop.org
Benchmark brown dwarf companions with well-determined ages and model-independent
masses are powerful tools to test substellar evolutionary models and probe the formation of …

[HTML][HTML] The JWST early release science program for the direct imaging and spectroscopy of exoplanetary systems

S Hinkley, AL Carter, S Ray, A Skemer… - Publications of the …, 2022 - iopscience.iop.org
The direct characterization of exoplanetary systems with high-contrast imaging is among the
highest priorities for the broader exoplanet community. As large space missions will be …

[HTML][HTML] The SPHERE infrared survey for exoplanets (SHINE)-I. Sample definition and target characterization

S Desidera, G Chauvin, M Bonavita, S Messina… - Astronomy & …, 2021 - aanda.org
Context. Large surveys with new-generation high-contrast imaging instruments are needed
to derive the frequency and properties of exoplanet populations with separations from~ 5 to …

Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks

R Asensio-Torres, T Henning, F Cantalloube… - Astronomy & …, 2021 - aanda.org
The detection of a wide range of substructures such as rings, cavities, and spirals has
become a common outcome of high spatial resolution imaging of protoplanetary disks, both …

Impacts of high-contrast image processing on atmospheric retrievals

E Nasedkin, P Mollière, J Wang, F Cantalloube… - Astronomy & …, 2023 - aanda.org
Many post-processing algorithms have been developed in order to better separate the
signal of a companion from the bright light of the host star, but the effect of such algorithms …

[HTML][HTML] Inverse-problem versus principal component analysis methods for angular differential imaging of circumstellar disks-The mustard algorithm

S Juillard, V Christiaens, O Absil - Astronomy & Astrophysics, 2023 - aanda.org
Context. Circumstellar disk images have highlighted a wide variety of morphological
features. Recovering disk images from high-contrast angular differential imaging (ADI) …