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 …
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 …
SPHERE: the exoplanet imager for the Very Large Telescope
Observations of circumstellar environments that look for the direct signal of exoplanets and
the scattered light from disks have significant instrumental implications. In the past 15 years …
the scattered light from disks have significant instrumental implications. In the past 15 years …
SPHERE: a planet finder instrument for the VLT
JL Beuzit, M Feldt, K Dohlen, D Mouillet… - Ground-based and …, 2008 - spiedigitallibrary.org
Direct detection and spectral characterization of extra-solar planets is one of the most
exciting but also one of the most challenging areas in modern astronomy. The challenge …
exciting but also one of the most challenging areas in modern astronomy. The challenge …
Shadows cast on the transition disk of hd 135344b-multiwavelength vlt/sphere polarimetric differential imaging
Context. The protoplanetary disk around the F-type star HD 135344B (SAO 206462) is in a
transition stage and shows many intriguing structures both in scattered light and thermal …
transition stage and shows many intriguing structures both in scattered light and thermal …
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 …
masses are powerful tools to test substellar evolutionary models and probe the formation of …
A SPHERE survey of self-shadowed planet-forming disks
To date, nearly two hundred planet-forming disks have been imaged at high resolution. Our
propensity to study bright and extended objects does, however, bias our view of the disk …
propensity to study bright and extended objects does, however, bias our view of the disk …
The SPHERE infrared survey for exoplanets (SHINE)-II. Observations, data reduction and analysis, detection performances, and initial results
M Langlois, R Gratton, AM Lagrange… - Astronomy & …, 2021 - aanda.org
Context. In recent decades, direct imaging has confirmed the existence of substellar
companions (exoplanets or brown dwarfs) on wide orbits (> 10 au) around their host stars. In …
companions (exoplanets or brown dwarfs) on wide orbits (> 10 au) around their host stars. In …
Reference-star differential imaging on SPHERE/IRDIS
Context. Reference-star differential imaging (RDI) is a promising technique in high-contrast
imaging that is thought to be more sensitive to exoplanets and disks than angular differential …
imaging that is thought to be more sensitive to exoplanets and disks than angular differential …
First light of the VLT planet finder SPHERE-III. New spectrophotometry and astrometry of the HR 8799 exoplanetary system
Context. The planetary system discovered around the young A-type HR 8799 provides a
unique laboratory to: a) test planet formation theories; b) probe the diversity of system …
unique laboratory to: a) test planet formation theories; b) probe the diversity of system …