Early Release Science of the exoplanet WASP-39b with JWST NIRSpec G395H

L Alderson, HR Wakeford, MK Alam, NE Batalha… - Nature, 2023 - nature.com
Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a
crucial avenue for unlocking the formation and evolution of exoplanetary systems,. Access to …

Early Release Science of the exoplanet WASP-39b with JWST NIRCam

EM Ahrer, KB Stevenson, M Mansfield, SE Moran… - Nature, 2023 - nature.com
Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a
fundamental step towards constraining the dominant chemical processes at work and, if in …

Five key exoplanet questions answered via the analysis of 25 hot-Jupiter atmospheres in eclipse

Q Changeat, B Edwards, AF Al-Refaie… - The Astrophysical …, 2022 - iopscience.iop.org
Population studies of exoplanets are key to unlocking their statistical properties. So far, the
inferred properties have been mostly limited to planetary, orbital, and stellar parameters …

Exploring the ability of Hubble Space Telescope WFC3 G141 to uncover trends in populations of exoplanet atmospheres through a homogeneous transmission survey …

B Edwards, Q Changeat, A Tsiaras… - The Astrophysical …, 2023 - iopscience.iop.org
We present analysis of the atmospheres of 70 gaseous extrasolar planets via transit
spectroscopy with Hubble's Wide Field Camera 3 (WFC3). For over half of these, we …

Chemical diversity in protoplanetary disks and its impact on the formation history of giant planets

E Pacetti, D Turrini, E Schisano, S Molinari… - The Astrophysical …, 2022 - iopscience.iop.org
Giant planets can interact with multiple and chemically diverse environments in
protoplanetary disks while they form and migrate to their final orbits. The way this interaction …

Early insights for atmospheric retrievals of exoplanets using JWST transit spectroscopy

S Constantinou, N Madhusudhan… - The Astrophysical …, 2023 - iopscience.iop.org
We have entered the era of the James Webb Space Telescope (JWST). We use the first
JWST transmission spectrum of the hot Saturn-mass exoplanet, WASP-39 b, obtained with …

Exoplanet atmosphere retrievals in 3D using phase curve data with ARCiS: application to WASP-43b

KL Chubb, M Min - Astronomy & Astrophysics, 2022 - aanda.org
Aims. Our goal is to create a retrieval framework which encapsulates the three-dimensional
(3D) nature of exoplanet atmospheres, and to apply it to observed emission phase curve …

15NH3 in the atmosphere of a cool brown dwarf

D Barrado, P Mollière, P Patapis, M Min, P Tremblin… - Nature, 2023 - nature.com
Brown dwarfs serve as ideal laboratories for studying the atmospheres of giant exoplanets
on wide orbits, as the governing physical and chemical processes within them are nearly …

Grid of pseudo-2D chemistry models for tidally locked exoplanets–II. The role of photochemistry

R Baeyens, T Konings, O Venot… - Monthly Notices of the …, 2022 - academic.oup.com
Photochemistry is expected to change the chemical composition of the upper atmospheres
of irradiated exoplanets through the dissociation of species, such as methane and ammonia …

Oxygen depletion in giant planets with different formation histories

S Fonte, D Turrini, E Pacetti, E Schisano… - Monthly Notices of …, 2023 - academic.oup.com
The atmospheric C/O ratio of exoplanets is widely used to constrain their formation. To
guarantee that the C/O ratio provides robust information, we need to accurately quantify the …