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20182026
most citedThe JWST Early Release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 Micron Spectrum of the Planetary-Mass Companion VHS 1256-1257 b

176 citations · 906 across the 50 of their papers we have counts for

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astro-ph.EP2026

EK Cha b: multi-tracer detection of a protoplanet candidate in a gas-rich environment

Felipe Alarcón, C. Swastik, Stefano Facchini +2

Despite sustained community efforts and advances in instrumentation and high-contrast imaging, the search for protoplanets remains difficult, with only two widely accepted systems…

astro-ph.EP2026

JWST/MIRI Imaging Search for Kinematically Detected Protoplanetary Candidates

G. Cugno, M. Benisty, R. Teague +32

Kinematic perturbations observed with ALMA in CO line emission provide evidence for a population of embedded giant protoplanets shaping the structure of protoplanetary disks. We pr…

astro-ph.EP2026

Mapping the WISPIT2 Planet-Hosting Cavity at Sub-Hill-Radius scales

Myriam Benisty, Stefano Facchini, Richard Teague +6

We present new deep, very high angular resolution observations of the sub-mm continuum (19x13 mas) and 12CO (67x52 mas) emission from the disk surrounding the planet host WISPIT2.…

astro-ph.EP2026

JWST/NIRCam Imaging of Young Stellar Objects. IV. Detailed Imaging of the Protoplanetary Disk around TW Hya

Yu-Chia Lin, Jarron Leisenring, Schuyler G. Wolff +14

As the nearest protoplanetary disk to Earth ( pc), TW Hya is one of the most studied protoplanetary disks and a critical benchmark for testing planet formation theories.…

astro-ph.EP2026

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems VIII: patchy forsterite and enstatite clouds in the atmosphere of VHS 1256 b, retrieval lessons learned and outlook to the future

Niall Whiteford, Jacqueline K. Faherty, Ben Burningham +123

JWST defines a new era for the data-driven approach of retrieval modelling, which has become a cornerstone tool for the statistical inference of exoplanetary and brown dwarf proper…

astro-ph.EP2026

JWST/MIRI Reveals the Evolution from Molecular to Atomic Disk Winds

Naman S. Bajaj, Ilaria Pascucci, Sylvie Cabrit +10

The evolution and dispersal of protoplanetary disks--governed by accretion, magnetically launched jets and winds, and photoevaporative winds--fundamentally shape planetary systems.…

astro-ph.EP2026

Multi-epoch scattered-light analysis of HD 135344B: new evidence for a spiral-driving protoplanet

J. Latour, V. Christiaens, O. Absil +17

The HD 135344B (SAO 206462) disk exhibits strong signposts of planet formation. ALMA images in the sub-mm revealed a gap-crossing dust filament whose position coincides with a twis…

astro-ph.EP2026

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. VII. Molecular Mapping Performance with JWST/MIRI MRS: VHS 1256 b as a case study

Mathilde Mâlin, Anthony Boccaletti, Benjamin Charnay +29

VHS 1256 b was the first planetary-mass companion to be observed with the James Webb Space Telescope's Mid-Infrared Instrument (JWST/MIRI) using the Medium-Resolution Spectrometer…

astro-ph.EP2026

High-Contrast Imaging of Forming Protoplanets: VLTs, JWST, and the Promise of ELT

Gabriele Cugno, Michael R. Meyer

Planet formation remains a fundamentally important yet poorly understood process. Protoplanetary disks, the birthplaces of planetary systems, exhibit a wide range of substructures…

astro-ph.EP2026

Giant Planet Formation by Disk Instability

Ravit Helled, Oliver Schib, Christian Reinhardt +4

The disk instability (DI) model for giant planet formation remains an attractive alternative in explaining the formation of giant planets at early times, giant planets at large rad…

astro-ph.EP2026★ 5 cited

A 2 au resolution view by ALMA of the planet-hosting WISPIT 2 disk

Stefano Facchini, Pietro Curone, Myriam Benisty +4

We present deep, high spatial resolution interferometric observations of 0.88 mm continuum emission from the TYC 5709-354-1 system, hereafter WISPIT 2, obtained with the goal of de…

astro-ph.EP2025★ 8 cited

Direct Measurement of Extinction in a Planet-Hosting Gap

G. Cugno, S. Facchini, F. Alarcon +12

Recent disk observations have revealed multiple indirect signatures of forming gas giant planets, but high-contrast imaging has rarely confirmed the presence of the suspected pertu…

astro-ph.EP2025

A carbon-rich disk surrounding a planetary-mass companion

Gabriele Cugno, Sierra L. Grant

During the final assembly of gas giant planets, circumplanetary disks (CPDs) of gas and dust form due to the conservation of angular momentum, providing material to be accreted ont…

astro-ph.EP2025★ 6 cited

JWST/MIRI observations of the young TWA 27 system: hydrocarbon disk chemistry, silicate clouds, evidence for a CPD

P. Patapis, M. Morales-Calderón, A. M. Arabhavi +39

The Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) enables the characterisation of young self-luminous gas giants at previously inaccessible wavelengths, r…

astro-ph.EP2025★ 5 cited

High-contrast spectroscopy with the new VLT/ERIS instrument: Molecular maps and radial velocity of the gas giant AF Lep b

Jean Hayoz, Markus Johannes Bonse, Felix Dannert +66

The Enhanced Resolution Imager and Spectrograph (ERIS) is the new Adaptive-Optics (AO) assisted Infrared instrument at the Very Large Telescope (VLT). Its refurbished Integral Fiel…

astro-ph.EP2024★ 5 cited

Large Interferometer For Exoplanets (LIFE). XIV. Finding terrestrial protoplanets in the galactic neighborhood

Lorenzo Cesario, Tim Lichtenberg, Eleonora Alei +62

The increased brightness temperature of young rocky protoplanets during their magma ocean epoch makes them potentially amenable to atmospheric characterization to distances from th…

astro-ph.EP2024★ 10 cited

Use the 4S (Signal-Safe Speckle Subtraction): Explainable Machine Learning reveals the Giant Exoplanet AF Lep b in High-Contrast Imaging Data from 2011

Markus J. Bonse, Timothy D. Gebhard, Felix A. Dannert +10

The main challenge of exoplanet high-contrast imaging (HCI) is to separate the signal of exoplanets from their host stars, which are many orders of magnitude brighter. HCI for grou…

astro-ph.EP2024★ 11 cited

Machine Learning for Exoplanet Detection in High-Contrast Spectroscopy: Revealing Exoplanets by Leveraging Hidden Molecular Signatures in Cross-Correlated Spectra with Convolutional Neural Networks

Emily O. Garvin, Markus J. Bonse, Jean Hayoz +8

The new generation of observatories and instruments (VLT/ERIS, JWST, ELT) motivate the development of robust methods to detect and characterise faint and close-in exoplanets. Molec…

astro-ph.EP2024★ 1 cited

Mid-Infrared Spectrum of the Disk around the Forming Companion GQ Lup B Revealed by JWST/MIRI

Gabriele Cugno, Polychronis Patapis, Andrea Banzatti +5

GQ Lup B is a forming brown dwarf companion () showing evidence for an infrared excess associated with a disk surronding the companion itself. Here we present mid-i…

astro-ph.EP2024

Extinction values towards embedded planets in protoplanetary disks estimated from hydrodynamic simulations

Felipe Alarcón, Edwin Bergin, Gabriele Cugno

The upcoming new coronographs with deeper contrast limits, together with planned and current high-contrast imaging campaigns will push the detectability limit of protoplanets. Thes…

astro-ph.EP2024★ 2 cited

The James Webb Interferometer: Space-based interferometric detections of PDS 70 b and c at 4.8 m

Dori Blakely, Doug Johnstone, Gabriele Cugno +22

We observed the planet-hosting system PDS 70 with the James Webb Interferometer, JWST's Aperture Masking Interferometric (AMI) mode within NIRISS. Observing with the F480M filter c…

astro-ph.EP2024

JWST/NIRCam Imaging of Young Stellar Objects III: Detailed Imaging of the Nebular Environment Around the HL Tau Disk

Camryn Mullin, Ruobing Dong, Jarron Leisenring +13

As part of the James Webb Space Telescope (JWST) Guaranteed Time Observation (GTO) program "Direct Imaging of YSOs" (program ID 1179), we use JWST NIRCam's direct imaging mode in F…

astro-ph.EP2024

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems V: Do Self-Consistent Atmospheric Models Represent JWST Spectra? A Showcase With VHS 1256 b

Simon Petrus, Niall Whiteford, Polychronis Patapis +119

The unprecedented medium-resolution (R~1500-3500) near- and mid-infrared (1-18um) spectrum provided by JWST for the young (140+/-20Myr) low-mass (12-20MJup) L-T transition (L7) com…

astro-ph.EP2024

JWST/NIRCam Imaging of Young Stellar Objects. II. Deep Constraints on Giant Planets and a Planet Candidate Outside of the Spiral Disk Around SAO 206462

Gabriele Cugno, Jarron Leisenring, Kevin R. Wagner +17

We present JWST/NIRCam F187N, F200W, F405N and F410M direct imaging data of the disk surrounding SAO 206462. Previous images show a very structured disk, with a pair of spiral arms…