Results 51 to 60 of about 1,771,886 (128)

Reinterpreting the JWST Observations of 55 Cancri e with a Nongray General Circulation Model

open access: yesThe Astrophysical Journal
Recent observations of 55 Cancri e suggest an atmosphere rich in CO or CO _2 ; other observations indicate the planet’s eclipse depth is highly variable.
Ruizhi Zhan, Daniel D.B. Koll
doaj   +1 more source

Atmospheric Circulation of High-obliquity Mini-Neptunes

open access: yesThe Astrophysical Journal
With the operation of JWST, atmospheric characterization has now extended to low-mass exoplanets. In compact multiplanetary systems, secular spin-orbital resonance may preserve high obliquities and asynchronous rotation even for tidally despinning, low ...
Yanhong Lai, Xianyu Tan, Yubo Su
doaj   +1 more source

The Complexity of Deep Aqueous Fluids in Planetary Ultramafic Mantles

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Planetary volatiles cycle through a planet's crust, mantle, and atmosphere, playing a crucial role in surface processes and habitability. Discussions of planetary volatiles traditionally focus on water, carbon, nitrogen, and sulfur, but fluids in contact with silicate rocks and ultramafic mantles can contain significant amounts of magnesium ...
Sophia E. Economon   +1 more
wiley   +1 more source

Southern hemisphere atmospheric circulation: Impacts on Antarctic climate and reconstructions from Antarctic ice core data [PDF]

open access: yes, 2010
The official pulished version can be accessed from the DOI below - Copyright @ 2010 Springer VerlagThe atmospheric circulation patterns in the Southern Hemisphere have had a significant impact on the climate of the Antarctic and there is much evidence ...
McGregor, G R   +3 more
core   +1 more source

Outstanding Challenges of Exoplanet Atmospheric Retrievals [PDF]

open access: yes, 2020
Spectral retrieval has long been a powerful tool for interpreting planetary remote sensing observations. Flexible, parameterised, agnostic models are coupled with inversion algorithms in order to infer atmospheric properties directly from observations ...
Barstow, Joanna K., Heng, Kevin
core   +2 more sources

HYDROCARBON MEASUREMENTS AND THEIR USE AS ATMOSPHERIC TRACERS [PDF]

open access: yes, 2013
Non-methane hydrocarbons (NMHCs) have been measured in the boundary layer and free troposphere to investigate their behaviour under different atmospheric chemical regimes.
Punjabi, Shalini
core   +5 more sources

Early Time Small-scale Structures in Hot Exoplanet Atmosphere Simulations

open access: yesThe Astrophysical Journal
We report on the critical influence of small-scale flow structures (e.g., fronts, vortices, and waves) that immediately arise in hot exoplanet atmosphere simulations initialized with a resting state.
J. W. Skinner, J. Y-K. Cho
doaj   +1 more source

Interactions of Sublimated Frost With Volcanic Plumes: Modeling Io's SO2 Atmosphere Using the DSMC Method

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann   +4 more
wiley   +1 more source

Exoplanet Atmospheric Studies At High Spectral Resolution

open access: yes, 2020
The study of exoplanet atmospheres is essential to understand the formation, evolution and composition of exoplanets. When a planet pass between its host star and an observer, a fraction of the star-light is absorbed by its atmosphere, thus revealing its
Allart, Romain
core   +1 more source

Bridging the Atmospheric Circulations of Hot and Warm Giant Exoplanets

open access: yesThe Astrophysical Journal
We perform high-resolution atmospheric flow simulations of hot and warm giant exoplanets that are tidally locked. The modeled atmospheres are representative of those on KELT-11 b and WASP-39 b, which possess markedly different equilibrium temperatures ...
J. W. Skinner, S. Wei
doaj   +1 more source

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