Results 101 to 110 of about 3,353,500 (213)
JWST/NIRISS Reveals the Water-rich “Steam World” Atmosphere of GJ 9827 d
The Astrophysical Journal LettersWith sizable volatile envelopes but smaller radii than the solar system ice giants, sub-Neptunes have been revealed as one of the most common types of planet in the galaxy. While the spectroscopic characterization of larger sub-Neptunes (2.5–4 R _⊕ ) has
Caroline Piaulet-Ghorayeb +32 more
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Atmospheric Studies of brown-Dwarfs and Exoplanets: Insights into Planet Formation and Evolution
, 2018 Cette thèse se focalise sur les propriétés atmosphériques des exoplanètes et des naines brunes et le lien avec les mécanismes de formation. Dans la première partie, le ratio des abondances de carbone et d'oxygène (C/O) du compagnon et de son étoile hôte est utilisé comme proxy.
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Exoplanet Aeronomy: A Case Study of WASP-69 b’s Variable Thermosphere
The Astronomical JournalAeronomy, the study of Earth’s upper atmosphere and its interaction with the local space environment, has long traced changes in the thermospheres of Earth and other solar system planets to solar variability in the X-ray and extreme-ultraviolet ...
W. Garrett Levine +7 more
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Coupling the Secular Dynamical and Atmospheric Evolution of Close-in Exoplanets
This thesis plunges into the enigmatic formation of the hot Neptune desert, a sparsely populated region of exoplanetary demographics, by exploring the processes that shape close-in exoplanets. Central to this inquiry is the interplay between atmospheric evaporation and orbital migration, two pivotal mechanisms governing the evolution of planetary ...
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The Astronomical JournalAbstract Comparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time. We present an occurrence rate study of short-period (<12 days) planets between 1.8 and 10 R ⊕ around 1374 FGK stars in nearby (200 pc) young clusters (<1 Gyr), utilizing data from the
Rachel B. Fernandes +21 more
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Mapping exoplanet clouds and albedo from phase curves and spectra
, 2017 Thesis: Ph. D. in Planetary Science, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2017.Cataloged from PDF version of thesis.Includes bibliographical references (pages 89-91).This thesis uses planetary ...
Webber, Matthew (Matthew William)
core
The Astrophysical JournalJWST has provided unprecedented access to ultracool brown dwarfs and has pushed the boundaries of directly imaging temperate giant planets. As we continue to push toward detecting sub-Saturn and Neptune-like planets, it is crucial to develop atmospheric ...
James Mang +9 more
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Numerical Performance of Correlated-k Distribution Method in Atmospheric Escape Simulation
The Astrophysical JournalAtmospheric escape is crucial to understanding the evolution of planets in and out of the solar system and to interpreting atmospheric observations. While hydrodynamic escape simulations have been actively developed incorporating detailed processes such ...
Yuichi Ito +2 more
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Interpolation and Synthesis of Sparse Samples in Exoplanet Atmospheric Modeling [PDF]
This paper highlights methods from geostatistics that are relevant to the interpretation, intercomparison, and synthesis of atmospheric model data, with a specific application to exoplanet atmospheric modeling.
Eric T. Wolf +7 more
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88th Annual Meeting of the Meteoritical Society 2026: Abstracts
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley +1 more source