Results 131 to 140 of about 468,207 (173)
Clouds and Clarity: Revisiting Atmospheric Feature Trends in Neptune-size Exoplanets
The Astrophysical Journal LettersOver the last decade, precise exoplanet transmission spectroscopy has revealed the atmospheres of dozens of exoplanets, driven largely by observatories like the Hubble Space Telescope.
Jonathan Brande +14 more
doaj +1 more source
86th Annual Meeting of the Meteoritical Society (2024)
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley +1 more source
An Analysis of Spitzer Phase Curves for WASP-121b and WASP-77Ab
The Astronomical JournalWe present analyses of Spitzer InfraRed Array Camera (IRAC) 3.6 μ m and 4.5 μ m phase-curve observations of hot Jupiters WASP-77Ab and WASP-121b. For WASP-121b, we find amplitudes of 1771 ± 95 ppm (3.6 μ m) and 2048 ± 109 ppm (4.5 μ m), and near-zero ...
Brian Davenport +8 more
doaj +1 more source
The Astrophysical Journal LettersBecause of its rotation period of 243 days, Venus is considered a slowly rotating planet. However, its persistent superrotating atmospheric jets, which increase in speed from surface to cloud tops, effectively set a faster rotation speed than the surface
Maureen Cohen +4 more
doaj +1 more source
On the robustness of exoplanet atmospheric detections: insights from extensive simulations [PDF]
arXivThe classical picture of our Solar System being the archetypal outcome of planet formation has been rendered obsolete by the astonishing diversity of extrasolar-system architectures. From rare hot-Jupiters to abundant super-Earths and sub-Neptunes, most detected exoplanets have no analogs in our system, and their interior and atmospheric compositions ...
arxiv
The Coupled Impacts of Atmospheric Composition and Obliquity on the Climate Dynamics of TRAPPIST-1e
The Astrophysical JournalPlanets in multiplanet systems are expected to migrate inward as near-resonant chains, thus allowing them to undergo gravitational planet–planet interactions and possibly maintain a nonzero obliquity.
Tobi Hammond, Thaddeus D. Komacek
doaj +1 more source
A New Lever on Exoplanetary B Fields: Measuring Heavy Ion Velocities
The Astrophysical Journal LettersMagnetic fields connect an array of planetary processes, from atmospheric escape to interior convection. Despite their importance, exoplanet magnetic fields are largely unconstrained by both theory and observation.
Arjun B. Savel +4 more
doaj +1 more source
Planetary Rhythms: Synchronous Circulation on Variably Irradiated Asynchronous Planets
The Astrophysical JournalTidal locking of planets to their host stars results in an atmospheric circulation with a hotspot fixed to the frame of reference of the planet. On the other hand, asynchronously rotating planets feature moving hotspots either lagging or leading the ...
Deepayan Banik
doaj +1 more source
Clouds and Seasonality on Terrestrial Planets with Varying Rotation Rates
The Astrophysical JournalUsing an idealized climate model incorporating seasonal forcing, we investigate the impact of rotation rate on the abundance of clouds on an Earth-like aquaplanet, and the resulting impacts upon albedo and seasonality. We show that the cloud distribution
Daniel A. Williams +3 more
doaj +1 more source
, 2017 The atmospheres of exoplanets are being characterised in increasing detail by observational facilities and will be examined with even greater clarity with upcoming space based missions such as the James Webb Space Telescope (JWST) and the Wide Field InfraRed Survey Telescope (WFIRST).
openaire +1 more source