Results 11 to 20 of about 8,850 (191)

Thermal structure, composition, atmospheric dynamics and long-terme evolution of irradiated exoplanets

open access: green, 2014
More than a thousand exoplanets have been discovered over the last decade. Perhaps more excitingly, probing their atmospheres has become possible. We now have spectra of hot Jupiters like HD 189733b and HD 209458b, of Neptune-like planets like GJ1214b and even smaller planets are within reach.
Vivien Parmentier
openalex   +3 more sources

The effect of a small amount of H and H2O in magma-ocean rocky-exoplanets : atmospheric composition and escape [PDF]

open access: goldGoldschmidt2023 abstracts, 2023
S. Charnoz   +5 more
openalex   +2 more sources

Impact of varying redox states on crystallization and atmospheric composition of rocky exoplanets.

open access: gold
The magma ocean (MO) phase typically describes the early stage of rocky planets, during which the entire planet is molten due to heat generated by accretion processes. In the case of short-period exoplanets inside the runaway greenhouse limit, this phase may last Gyrs, until the inventory of major greenhouse gasses, such as H2O and H2, is exhausted ...
Mariana Sastre   +4 more
openalex   +2 more sources

Atmospheric Composition Retrieval from Transit Spectra of Terrestrial Exoplanets: A Feasibility Study using Earth Observations

open access: green, 2017
For an assessment of the detectability of molecular concentrations from transit spectra of Earth-like exoplanets, occultation spectra observed by an operational Earth observation satellite mission have been modeled with a line-by-line infrared radiative transfer code.
Steffen Städt   +3 more
  +5 more sources

Composition of terrestrial exoplanet atmospheres from meteorite outgassing experiments [PDF]

open access: yesNature Astronomy, 2021
42 pages, 9 Figures, 2 Tables, 4 Supplementary Figures, 3 Supplementary Tables, published in Nature Astronomy (2021)
Maggie A. Thompson   +5 more
openaire   +4 more sources

The atmospheres of rocky exoplanets [PDF]

open access: yesAstronomy & Astrophysics, 2022
Clouds are an integral part of planetary atmospheres, with most planets hosting clouds. Understanding not only the formation, but also the composition of clouds, is crucial to understand future observations. As observations of the planet’s surface will remain very difficult, it is essential to link the observable high atmosphere gas and cloud ...
O. Herbort   +3 more
openaire   +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

Conclusive Evidence for a Population of Water Worlds around M Dwarfs Remains Elusive

open access: yesThe Astrophysical Journal Letters, 2023
The population of small, close-in exoplanets is bifurcated into super-Earths and sub-Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with rocky cores and H/He-dominated atmospheres, accounting for their thermal ...
James G. Rogers   +2 more
doaj   +1 more source

The influence of bulk composition on the long-term interior-atmosphere evolution of terrestrial exoplanets [PDF]

open access: yesAstronomy & Astrophysics, 2020
Aims.The secondary atmospheres of terrestrial planets form and evolve as a consequence of interaction with the interior over geological time. We aim to quantify the influence of planetary bulk composition on the interior–atmosphere evolution for Earth-sized terrestrial planets to aid in the interpretation of future observations of terrestrial exoplanet
Spaargaren, Rob J   +4 more
openaire   +4 more sources

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