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20242026
most citedJWST/NIRISS reveals the water-rich "steam world" atmosphere of GJ 9827 d

92 citations · 273 across the 28 of their papers we have counts for

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12 papers · 1 filter

astro-ph.EP2025★ 1 cited

Limb Asymmetries on WASP-39b: A Multi-GCM Comparison of Chemistry, Clouds, and Hazes

Maria E. Steinrueck, Arjun B. Savel, Duncan A. Christie +28

With JWST, observing separate spectra of the morning and evening limbs of hot Jupiters has finally become a reality. The first such observation was reported for WASP-39b, where the…

astro-ph.EP2025

BOWIE-ALIGN: Weak spectral features in KELT-7b's JWST NIRSpec/G395H transmission spectrum imply a high cloud deck or a low-metallicity atmosphere

Eva-Maria Ahrer, Charlotte Fairman, James Kirk +20

Hot Jupiters and their atmospheres are prime targets for transmission spectroscopy due to their extended atmospheres and the corresponding large signal-to-noise, providing the best…

astro-ph.EP2025

Geometric Considerations in Hot Jupiter Magnetic Drag Models

Duncan A. Christie, Tom M. Evans-Soma, Nathan J. Mayne +1

Magnetic fields are expected to impact the atmospheric dynamics of hot and ultra-hot Jupiters due to their increased ionization fractions, compared to that of cooler exoplanets, bu…

astro-ph.EP2025★ 2 cited

The Effects of Cuboid Particle Scattering on Reflected Light Phase Curves: Insights from Laboratory Data and Theory

Colin D. Hamill, Alexandria V. Johnson, Matt Lodge +5

Understanding the optical properties of exoplanet cloud particles is a top priority. Many cloud condensates form as nonspherical particles and their optical properties can be very…

astro-ph.EP2025★ 3 cited

Three-dimensional Transport-induced Chemistry on Temperate sub-Neptune K2-18b, Part I: the Effects of Atmospheric Dynamics

Jiachen Liu, Duncan Christie, Jun Yang

The low equilibrium temperatures of temperate sub-Neptunes lead to extremely long chemical timescales in their upper atmospheres, causing the abundances of chemical species to be s…

astro-ph.EP2025★ 13 cited

Tracing the formation and migration history: molecular signatures in the atmosphere of misaligned hot Jupiter WASP-94Ab using JWST NIRSpec/G395H

Eva-Maria Ahrer, Siddharth Gandhi, Lili Alderson +12

The discovery of hot Jupiters that orbit very close to their host stars has long challenged traditional models of planetary formation and migration. Characterising their atmospheri…

astro-ph.EP2025★ 15 cited

WASP-121b's transmission spectrum observed with JWST/NIRSpec G395H reveals thermal dissociation and SiO in the atmosphere

Cyril Gapp, Thomas M. Evans-Soma, Joanna K. Barstow +8

WASP-121b has been established as a benchmark ultrahot Jupiter, serving as a laboratory for the atmospheric chemistry and dynamics of strongly irradiated extrasolar gas giants. Her…

astro-ph.EP2025

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b

Thomas M. Evans-Soma, David K. Sing, Joanna K. Barstow +15

Refractory elements such as iron, magnesium, and silicon can be detected in the atmospheres of ultrahot giant planets. This provides an opportunity to quantify the amount of refrac…

astro-ph.EP2025★ 7 cited

Cloudy mornings and clear evenings on a gas giant exoplanet

Sagnick Mukherjee, David K. Sing, Guangwei Fu +25

The spectra of exoplanet atmospheres are affected by aerosols (clouds and hazes) of uncertain origin. Proposed aerosol formation mechanisms include gas condensation or photochemica…

astro-ph.EP2025★ 37 cited

Escaping Helium and a Highly Muted Spectrum Suggest a Metal-Enriched Atmosphere on Sub-Neptune GJ3090b from JWST Transit Spectroscopy

Eva-Maria Ahrer, Michael Radica, Caroline Piaulet-Ghorayeb +27

Sub-Neptunes, the most common planet type, remain poorly understood. Their atmospheres are expected to be diverse, but their compositions are challenging to determine, even with JW…

astro-ph.EP2025★ 1 cited

Modeling Atmospheric Ion Escape from Kepler-1649 b and c over Time

Haitao Li, Chuanfei Dong, Lianghai Xie +15

Rocky planets orbiting M-dwarf stars are prime targets for atmospheric characterization, yet their long-term evolution under intense stellar winds and high-energy radiation remains…

astro-ph.EP2025

BOWIE-ALIGN: Sub-stellar metallicity and carbon depletion in the aligned TrES-4b with JWST NIRSpec transmission spectroscopy

Annabella Meech, Alastair B. Claringbold, Eva-Maria Ahrer +19

The formation and migration history of a planet is expected to be imprinted in its atmosphere, in particular its carbon-to-oxygen (C/O) ratio and metallicity. The BOWIE-ALIGN progr…