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20172026
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 · 565 across the 54 of their papers we have counts for

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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.EP2025

exoALMA XI: ALMA Observations and Hydrodynamic Models of LkCa 15: Implications for Planetary Mass Companions in the Dust Continuum Cavity

Charles H. Gardner, Andrea Isella, Hui Li +43

In the past decade, the Atacama Large Millimeter/submillimeter Array (ALMA) has revealed a plethora of substructures in the disks surrounding young stars. These substructures have…

astro-ph.EP2025

Doppler Shifted Transient Sodium Detection by KECK/HIRES

Athira Unni, Apurva V. Oza, H. Jens Hoeijmakers +12

We carried out the first high-resolution transit observations of the exoplanet WASP-49 Ab with Keck/HIRES. Upon custom wavelength calibration we achieve a Doppler RV precision of $…

astro-ph.EP2024★ 3 cited

Searching for Protoplanets around MWC 758 and MWC 480 in Br- using Kernel Phase and SCExAO/CHARIS

Alexander Chaushev, Steph Sallum, Julien Lozi +6

Discovering new actively-accreting protoplanets is crucial to answering open questions about planet formation. However, identifying such planets at orbital distances where they are…

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.EP2023

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems III: Aperture Masking Interferometric Observations of the star HIP 65426 at 3.8 um

Shrishmoy Ray, Steph Sallum, Sasha Hinkley +121

We present aperture masking interferometry (AMI) observations of the star HIP 65426 at as a part of the JWST Direct Imaging Early Release Science (ERS) program obtai…

astro-ph.EP2023

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems IV: NIRISS Aperture Masking Interferometry Performance and Lessons Learned

Steph Sallum, Shrishmoy Ray, Jens Kammerer +120

We present a performance analysis for the aperture masking interferometry (AMI) mode on board the James Webb Space Telescope Near Infrared Imager and Slitless Spectrograph (JWST/NI…

astro-ph.EP2023★ 17 cited

Systematic Multi-Epoch Monitoring of LkCa 15: Dynamic Dust Structures on Solar-System Scales

Steph Sallum, Josh Eisner, Andy Skemer +1

We present the highest angular resolution infrared monitoring of LkCa 15, a young solar analog hosting a transition disk. This system has been the subject of a number of direct ima…

astro-ph.EP2023★ 6 cited

A Large Double-ring Disk around the Taurus M Dwarf J04124068+2438157

Feng Long, Bin B. Ren, Nicole L. Wallack +23

Planet formation imprints signatures on the physical structures of disks. In this paper, we present high-resolution (50 mas, 8 au) Atacama Large Millimeter/submillimeter Arra…

astro-ph.EP2022★ 5 cited

Detecting planetary mass companions near the water frost-line using JWST interferometry

Shrishmoy Ray, Sasha Hinkley, Steph Sallum +4

JWST promises to be the most versatile infrared observatory for the next two decades. The Near Infrared and Slitless Spectrograph (NIRISS) instrument, when used in the Aperture Mas…

astro-ph.EP2022★ 176 cited

The 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

Brittany E. Miles, Beth A. Biller, Polychronis Patapis +101

We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is a 20 M widely separated (8\arcsec, a = 150 au), young, planetary-…

astro-ph.EP2022

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems I: High Contrast Imaging of the Exoplanet HIP 65426 b from 2-16 m

Aarynn L. Carter, Sasha Hinkley, Jens Kammerer +108

We present JWST Early Release Science (ERS) coronagraphic observations of the super-Jupiter exoplanet, HIP 65426 b, with the Near-Infrared Camera (NIRCam) from 2-5 m, and with t…

astro-ph.EP2022★ 51 cited

The JWST Early Release Science Program for the Direct Imaging & Spectroscopy of Exoplanetary Systems

Sasha Hinkley, Aarynn L. Carter, Shrishmoy Ray +83

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…

astro-ph.EP2020★ 116 cited

On the diversity of asymmetries in gapped protoplanetary disks

Nienke van der Marel, Til Birnstiel, Antonio Garufi +7

Protoplanetary disks with large inner dust cavities are thought to host massive planetary or substellar companions. These disks show asymmetries and rings in the millimeter continu…

astro-ph.EP2019

The Demographics and Atmospheres of Giant Planets with the ELTs

Brendan Bowler, Steph Sallum, Alan Boss +23

Gas giants are the most readily detectable exoplanets but fundamental questions about their system architectures, formation, migration, and atmospheres have been unanswerable with…

astro-ph.EP2019★ 2 cited

Imaging Giant Protoplanets with the ELTs

Steph Sallum, Vanessa P. Bailey, Rebecca A. Bernstein +27

We have now accumulated a wealth of observations of the planet-formation environment and of mature planetary systems. These data allow us to test and refine theories of gas-giant p…

astro-ph.EP2019

Protoplanetary Disk Science Enabled by Extremely Large Telescopes

Hannah Jang-Condell, Sean Brittain, Alycia Weinberger +36

The processes that transform gas and dust in circumstellar disks into diverse exoplanets remain poorly understood. One key pathway is to study exoplanets as they form in their youn…