activity
20202026
most citedEarly Release Science of the exoplanet WASP-39b with JWST NIRISS

232 citations · 1.4k across the 39 of their papers we have counts for

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Showing 2025Show all

10 papers · 1 filter

astro-ph.EP2025★ 6 cited

Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map

Ryan C. Challener, Megan Weiner Mansfield, Patricio E. Cubillos +33

Highly-irradiated giant exoplanets known as "ultra-hot Jupiters" are anticipated to exhibit large variations of atmospheric temperature and chemistry as a function of longitude, la…

astro-ph.EP2025★ 14 cited

Magma ocean interactions can explain JWST observations of the sub-Neptune TOI-270 d

Matthew C. Nixon, R. Sander Somers, Arjun B. Savel +9

Sub-Neptunes with substantial atmospheres may possess magma oceans in contact with the overlying gas, with chemical interactions between the atmosphere and magma playing an importa…

astro-ph.EP2025★ 6 cited

Not All Sub-Neptune Exoplanets Have Magma Oceans

Bodie Breza, Matthew C. Nixon, Eliza M. -R. Kempton

The evolution and structure of sub-Neptunes may be strongly influenced by interactions between the outer gaseous envelope of the planet and a surface magma ocean. However, given th…

astro-ph.EP2025

A carbon-rich atmosphere on a windy pulsar planet

Michael Zhang, Maya Beleznay, Timothy D. Brandt +17

A handful of enigmatic Jupiter-mass objects have been discovered orbiting pulsars. One such object, PSR\,J2322-2650b, uniquely resembles a hot Jupiter exoplanet due to its minimum…

astro-ph.EP2025

Do Rocky Planets around M Stars Have Atmospheres? A Statistical Approach to the Cosmic Shoreline

Jegug Ih, Eliza M. -R. Kempton, Hannah Diamond-Lowe +6

Answering the question "do rocky exoplanets around M stars have atmospheres?" is a key science goal of the JWST mission, with 500 hours of Director's Discretionary Time (DDT) award…

astro-ph.EP2025

An Earth-like Density for the Temperate Earth-sized Planet GJ 12b

Madison Brady, Jacob Bean, Ritvik Basant +9

While JWST has provided us with the opportunity to probe the atmospheres of potentially-habitable planets, observations of the TRAPPIST-1 system have shown us that active stars sev…

astro-ph.EP2025★ 20 cited

Challenges in the detection of gases in exoplanet atmospheres

Luis Welbanks, Matthew C. Nixon, Peter McGill +12

Claims of detections of gases in exoplanet atmospheres often rely on comparisons between models including and excluding specific chemical species. However, the space of molecular c…

astro-ph.EP2025

The radiative effects of photochemical hazes on the atmospheric circulation and phase curves of sub-Neptunes

Maria E. Steinrueck, Vivien Parmentier, Laura Kreidberg +13

Measuring the atmospheric composition of hazy sub-Neptunes like GJ~1214b through transmission spectroscopy is difficult because of the degeneracy between mean molecular weight and…

astro-ph.EP2025★ 9 cited

Enabling Robust Exoplanet Atmospheric Retrievals with Gaussian Processes

Yoav Rotman, Luis Welbanks, Michael R. Line +3

Atmospheric retrievals are essential tools for interpreting exoplanet transmission and eclipse spectra, enabling quantitative constraints on the chemical composition, aerosol prope…

astro-ph.EP2025★ 1 cited

TOI-421 b: A Hot Sub-Neptune with a Haze-Free, Low Mean Molecular Weight Atmosphere

Brian Davenport, Eliza M. -R. Kempton, Matthew C. Nixon +8

Common features of sub-Neptunes atmospheres observed to date include signatures of aerosols at moderate equilibrium temperatures (~500-800 K), and a prevalence of high mean molecul…