The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: a 1 to 20 μm spectrum of the planetary-mass companion VHS 1256 …

BE Miles, BA Biller, P Patapis, K Worthen… - The Astrophysical …, 2023 - iopscience.iop.org
We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is
a< 20 M Jup widely separated (∼ 8'', a= 150 au), young, planetary-mass companion that …

Imaging extrasolar giant planets

BP Bowler - Publications of the Astronomical Society of the …, 2016 - iopscience.iop.org
High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

The field substellar mass function based on the full-sky 20 pc census of 525 L, T, and Y dwarfs

JD Kirkpatrick, CR Gelino, JK Faherty… - The Astrophysical …, 2021 - iopscience.iop.org
We present final Spitzer trigonometric parallaxes for 361 L, T, and Y dwarfs. We combine
these with prior studies to build a list of 525 known L, T, and Y dwarfs within 20 pc of the …

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

AL Carter, S Hinkley, J Kammerer… - The Astrophysical …, 2023 - iopscience.iop.org
Abstract We present JWST Early Release Science coronagraphic observations of the super-
Jupiter exoplanet, HIP 65426b, with the Near-Infrared Camera (NIRCam) from 2 to 5 μm …

Discovery of a warm, dusty giant planet around HIP 65426

G Chauvin, S Desidera, AM Lagrange, A Vigan… - Astronomy & …, 2017 - aanda.org
Aims. The SHINE program is a high-contrast near-infrared survey of 600 young, nearby stars
aimed at searching for and characterizing new planetary systems using VLT/SPHERE's …

Population properties of brown dwarf analogs to exoplanets

JK Faherty, AR Riedel, KL Cruz, J Gagne… - The Astrophysical …, 2016 - iopscience.iop.org
We present a kinematic analysis of 152 low surface gravity M7-L8 dwarfs by adding 18 new
parallaxes (including 10 for comparative field objects), 38 new radial velocities, and 19 new …

The Hawaii infrared parallax program. II. Young ultracool field dwarfs

MC Liu, TJ Dupuy, KN Allers - The Astrophysical Journal, 2016 - iopscience.iop.org
We present a large, uniform analysis of young (≈ 10–150 Myr) ultracool dwarfs, based on
new high-precision infrared (IR) parallaxes for 68 objects. We find that low-gravity (vl-g) late …

Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star

T Currie, GM Brandt, TD Brandt, B Lacy, A Burrows… - Science, 2023 - science.org
Direct imaging of gas giant exoplanets provides information on their atmospheres and the
architectures of planetary systems. However, few planets have been detected in blind …

Individual Dynamical Masses of Ultracool Dwarfs

TJ Dupuy, MC Liu - The Astrophysical Journal Supplement …, 2017 - iopscience.iop.org
We present the full results of our decade-long astrometric monitoring programs targeting 31
ultracool binaries with component spectral types M7–T5. Joint analysis of resolved imaging …

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 …