Results 11 to 20 of about 3,834 (215)

Understanding Exoplanet Atmospheres [PDF]

open access: yes, 2022
The study of exoplanet atmospheres is a blossoming field. Over the past two decades, dozens of hot gas giant atmospheres have been observed using a variety of techniques with both space and ground telescopes, revealing the presence of water, the ...
Zhang, Zhaoxi Michael
core   +2 more sources

Modeling of Exoplanet Atmospheres [PDF]

open access: yes, 2017
Spectrally characterizing exoplanet atmospheres will be one of the fastest moving astronomical disciplines in the years to come. Especially the upcoming James Webb Space Telescope (JWST) will provide spectral measurements from the near- to mid-infrared ...
Mollière, Paul Maurice
core   +2 more sources

Spectra as windows into exoplanet atmospheres. [PDF]

open access: yesProc Natl Acad Sci U S A, 2014
Understanding a planet’s atmosphere is a necessary condition for understanding not only the planet itself, but also its formation, structure, evolution, and habitability. This requirement puts a premium on obtaining spectra and developing credible interpretative tools with which to retrieve vital planetary information.
Burrows AS.
europepmc   +5 more sources

Simulations of idealised 3D atmospheric flows on terrestrial planets using LFRic-Atmosphere [PDF]

open access: yesGeoscientific Model Development, 2023
We demonstrate that LFRic-Atmosphere, a model built using the Met Office's GungHo dynamical core, is able to reproduce idealised large-scale atmospheric circulation patterns specified by several widely used benchmark recipes.
D. E. Sergeev   +16 more
doaj   +1 more source

Exoplanet atmospheres at high spectral resolution

open access: yesAnnual Review of Astronomy and Astrophysics
The spectrum of an exoplanet reveals the physical, chemical, and biological processes that have shaped its history and govern its future. However, observations of exoplanet spectra are complicated by the overwhelming glare of their host stars.
Birkby, Jayne
core   +4 more sources

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+2 more sources

ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution

open access: yesThe Astrophysical Journal Letters, 2023
Exoplanet atmosphere studies are often enriched by synergies with brown dwarf analogs. However, many key molecules commonly seen in brown dwarfs have yet to be confirmed in exoplanet atmospheres.
Laura Flagg   +9 more
doaj   +1 more source

Nonthermal Atmospheric Escape on the Kepler-11 “Super-Earths” Driven by Stellar Wind Sputtering

open access: yesThe Astrophysical Journal, 2023
Jeans escape or hydrodynamic escape is believed to dominate atmospheric loss for hot Jupiters. However, nonthermal mechanisms likely contribute substantially on hydrogen-rich “super-Earths” with relatively cold and extended atmospheres.
Hao Gu   +4 more
doaj   +1 more source

A Catalog of Exoplanet Atmospheric Retrieval Codes

open access: yesResearch Notes of the AAS, 2023
Abstract Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations. Retrieval codes typically employ Bayesian sampling algorithms or machine learning approaches to explore the range of atmospheric properties (e.g., chemical composition ...
MacDonald, Ryan, Batalha, Natasha
openaire   +3 more sources

The Runaway Greenhouse on Sub-Neptune Waterworlds

open access: yesThe Astrophysical Journal, 2023
The implications of the water vapor runaway greenhouse phenomenon for water-rich sub-Neptunes are developed. In particular, the nature of the postrunaway equilibration process for planets that have an extremely high water inventory is addressed. Crossing
Raymond T. Pierrehumbert
doaj   +1 more source

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