Results 111 to 120 of about 3,795,130 (207)

Atmospheric Circulation of High-obliquity Mini-Neptunes

The 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

Precise Constraints on the Energy Budget of WASP-121 b from Its JWST NIRISS/SOSS Phase Curve

The Astronomical Journal
Ultra-hot Jupiters exhibit day-to-night temperature contrasts upwards of 1000 K due to competing effects of strong winds, short radiative timescales, magnetic drag, and H _2 dissociation/recombination. Spectroscopic phase curves provide critical insights
Jared Splinter, Louis-Philippe Coulombe, Robert C. Frazier, Nicolas B. Cowan, Emily Rauscher, Lisa Dang, Michael Radica, Sean Collins, Stefan Pelletier, Romain Allart, Ryan J. MacDonald, David Lafrenière, Loïc Albert, Björn Benneke, René Doyon, Ray Jayawardhana, Doug Johnstone, Vigneshwaran Krishnamurthy, Caroline Piaulet-Ghorayeb, Lisa Kaltenegger, Michael R. Meyer, Jake Taylor, Jake D. Turner   +22 more
doaj   +1 more source

Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2 b. II. Phase-resolved Emission Spectroscopy with Very Large Telescope/CRIRES+ and Gemini South/IGRINS

The Astronomical Journal
Hot Jupiters are expected to be tidally locked and synchronously rotating due to their short orbital periods. These conditions create large day–night temperature contrasts and are thought to drive eastward superrotating jets.
Aurora Y. Kesseli, Siddharth Gandhi, Lisa Dang, Alexis Lavail, Alejandro Sánchez-López, Ying Shu, Emily Rauscher, Hayley Beltz, Romain Allart, Stefan Pelletier, Vatsal Panwar   +10 more
doaj   +1 more source

Analytic Modeling of Tidally Locked Rocky Planet Atmospheres across Dynamical Regimes

The Astrophysical Journal
We present a new first-principles analytic approach to interpreting eclipses and phase curves of rocky planets. Observations with JWST have reported nondetections of atmospheres around the majority of hot rocky planets orbiting M dwarfs. However, most of
Christopher P. Wirth, Diana Powell, Robin Wordsworth   +2 more
doaj   +1 more source

Exoplanet Aeronomy: A Case Study of WASP-69 b’s Variable Thermosphere

The Astronomical Journal
Aeronomy, 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, Shreyas Vissapragada, Adina D. Feinstein, George W. King, Aleck Hernandez, Lía Corrales, Michael Greklek-McKeon, Heather A. Knutson   +7 more
doaj   +1 more source

Tropical Cyclones on Tidally Locked Rocky Planets: Dependence on Rotation Period

The Astrophysical Journal
Tropical cyclones occur over the Earth’s tropical oceans, with characteristic genesis regions and tracks tied to the warm ocean surface that provide energy to sustain these storms.
Valeria Garcia, Cole M. Smith, Daniel R. Chavas, Thaddeus D. Komacek   +3 more
doaj   +1 more source

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, Thomas J. Fauchez, Fauchez, Thomas J., Ravi K. Kopparapu, Wolf, Eric T., Kopparapu, Ravi K., Jacob Haqq-Misra, Haqq-Misra, Jacob   +7 more
core   +1 more source

Signature of Vertical Mixing in Hydrogen-dominated Exoplanet Atmospheres

The Astrophysical Journal
Vertical mixing is a crucial disequilibrium process in exoplanet atmospheres, significantly impacting chemical abundance and observed spectra. While current state-of-the-art observations have detected its signatures, the effect of vertical mixing on ...
Vikas Soni, Kinsuk Acharyya
doaj   +1 more source

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

Structure thermique, composition, dynamique de l’atmosphère et évolution à long-terme des exoplanètes irradiées Plus d’un millier d’exoplanètes ont été découvertes depuis une dizaine d’années. Plus incroyable encore, nous pouvons maintenant caractériser les atmosphères de ces mondes lointains.
openaire   +2 more sources

The Response of Planetary Atmospheres to the Impact of Icy Comets. III. Impact Driven Atmospheric Escape

The Astrophysical Journal
In an Earth-analogue atmosphere, water vapor is a key carrier of hydrogen in the lower atmosphere. The vertical transport of water to above the tropopause is one of the primary control valves on the atmospheric hydrogen escape rate.
F. Sainsbury-Martinez, G. Cooke, C. Walsh   +2 more
doaj   +1 more source